Notes
Catriona Agg's puzzles

Catriona Agg’s Geometry Puzzles

  1. three squares ii May 2, 2021

    Three Squares II

  2. two overlapping triangles ii Apr 11, 2021

    Two Overlapping Triangles II

  3. two regular hexagons ii Apr 10, 2021

    Two Regular Hexagons II

  4. isosceles and equilateral triangles Apr 10, 2021

    Isosceles and Equilateral Triangles

  5. two concentric circles Apr 10, 2021

    Two Concentric Circles

  6. four squares and a quarter circle Apr 9, 2021

    Four Squares and a Quarter Circle

  7. hexagon and a square Apr 6, 2021

    Hexagon and a Square

  8. two quarter circles in a square ii Apr 5, 2021

    Two Quarter Circles in a Square II

  9. four squares in a semi-circle Apr 4, 2021

    Four Squares in a Semi-Circle

  10. triangle in two tilted squares Apr 3, 2021

    Triangle in Two Tilted Squares

  11. quarter circle overlapping a circle Apr 2, 2021

    Quarter Circle Overlapping a Circle

  12. five equilateral triangles Apr 1, 2021

    Five Equilateral Triangles

  13. four equilateral triangles inside a hexagon Mar 31, 2021

    Four Equilateral Triangles Inside a Hexagon

  14. two quarter circles in a semi-circle ii Mar 30, 2021

    Two Quarter Circles in a Semi-Circle II

  15. three squares iii Mar 29, 2021

    Three Squares III

  16. four squares vii Mar 28, 2021

    Four Squares VII

  17. seven quarter circles inside a semi-circle Mar 27, 2021

    Seven Quarter Circles Inside a Semi-Circle

  18. two hexagons and a triangle Mar 26, 2021

    Two Hexagons and a Triangle

  19. two squares inside a semi-circle Mar 23, 2021

    Two Squares Inside a Semi-Circle

  20. five semi-circles Mar 22, 2021

    Five Semi-Circles

  21. four squares vi Mar 21, 2021

    Four Squares VI

  22. four parallel semi-circles Mar 20, 2021

    Four Parallel Semi-Circles

  23. three overlapping hexagons Mar 19, 2021

    Three Overlapping Hexagons

  24. four squares v Mar 18, 2021

    Four Squares V

  25. two squares on a hexagon Mar 17, 2021

    Two Squares on a Hexagon

  26. crossed rectangles in a square Mar 16, 2021

    Crossed Rectangles in a Square

  27. three triangles in a hexagon Mar 15, 2021

    Three Triangles in a Hexagon

  28. striped semi-circle Mar 14, 2021

    Striped Semi-Circle

  29. two quarter circles and a semi-circle ii Mar 13, 2021

    Two Quarter Circles and a Semi-Circle II

  30. five quarter circles Mar 12, 2021

    Five Quarter Circles

  31. subdivided hexagon Mar 10, 2021

    Subdivided Hexagon

  32. multiple semi-circles iii Mar 7, 2021

    Multiple Semi-Circles III

  33. three overlapping semi-circles Mar 6, 2021

    Three Overlapping Semi-Circles

  34. three quarter circles Mar 2, 2021

    Three Quarter Circles

  35. two squares on a diameter of a circle Mar 1, 2021

    Two Squares on a Diameter of a Circle

  36. a hexagon and a nonagon Feb 28, 2021

    A Hexagon and a Nonagon

  37. four quarter circles in a circle Feb 27, 2021

    Four Quarter Circles in a Circle

  38. three regular hexagons Feb 26, 2021

    Three Regular Hexagons

  39. two squares overlapping a square ii Feb 23, 2021

    Two Squares Overlapping a Square II

  40. three congruent triangles Feb 21, 2021

    Three Congruent Triangles

  41. two triangles overlapping a quarter circle Feb 20, 2021

    Two Triangles Overlapping a Quarter Circle

  42. three congruent rectangles iii Feb 19, 2021

    Three Congruent Rectangles III

  43. three congruent triangles in a semi-circle Feb 18, 2021

    Three Congruent Triangles in a Semi-Circle

  44. triangle over a circle Feb 17, 2021

    Triangle Over a Circle

  45. multiple semi-circles iv Feb 16, 2021

    Multiple Semi-Circles IV

  46. four squares iv Feb 15, 2021

    Four Squares IV

  47. two squares overlapping a square Feb 14, 2021

    Two Squares Overlapping a Square

  48. zig-zag inside a square Feb 13, 2021

    Zig-zag Inside a Square

  49. two semi-circles in a semi-circle Feb 11, 2021

    Two Semi-Circles in a Semi-Circle

  50. six triangles in a hexagon Feb 9, 2021

    Six Triangles in a Hexagon

  51. two overlapping triangles Feb 7, 2021

    Two Overlapping Triangles

  52. four squares inside a rectangle Jan 31, 2021

    Four Squares Inside a Rectangle

  53. two triangles in a circle and semi-circle Jan 30, 2021

    Two Triangles in a Circle and Semi-Circle

  54. triangle in a rectangle Jan 29, 2021

    Triangle in a Rectangle

  55. multiple semi-circles ii Jan 27, 2021

    Multiple Semi-Circles II

  56. square overlapping a square and a rectangle Jan 24, 2021

    Square Overlapping a Square and a Rectangle

  57. chord splitting a square in half Jan 23, 2021

    Chord Splitting a Square in Half

  58. rectangle tilted over a square Jan 16, 2021

    Rectangle Tilted Over a Square

  59. multiple angles Jan 10, 2021

    Multiple Angles

  60. three circles and two semi-circles in a circle Jan 9, 2021

    Three Circles and Two Semi-Circles in a Circle

  61. four triangles in a square Dec 31, 2020

    Four Triangles in a Square

  62. zig-zag inside a rectangle Dec 30, 2020

    Zig-zag Inside a Rectangle

  63. five squares across a square Dec 23, 2020

    Five Squares Across a Square

  64. two squares and a semi-circle Dec 13, 2020

    Two Squares and a Semi-Circle

  65. two circles in a square ii Oct 31, 2020

    Two Circles in a Square II

  66. triangles formed from rectangles Oct 29, 2020

    Triangles Formed from Rectangles

  67. three triangles in a circle in a triangle Oct 24, 2020

    Three Triangles in a Circle in a Triangle

  68. two quarter circles in a semi-circle Aug 31, 2020

    Two Quarter Circles in a Semi-Circle

  69. circle inside a triangle Aug 28, 2020

    Circle Inside a Triangle

  70. similar rectangles Aug 26, 2020

    Similar Rectangles

  71. two semi-circles in a circle Aug 21, 2020

    Two Semi-Circles in a Circle

  72. semi-circle and quarter circle in a square Aug 17, 2020

    Semi-Circle and Quarter Circle in a Square

  73. multiple semi-circles in a circle Aug 15, 2020

    Multiple Semi-Circles in a Circle

  74. four squares iii Aug 14, 2020

    Four Squares III

  75. triangle over two rectangles Aug 7, 2020

    Triangle Over Two Rectangles

  76. subdivided decagon Jul 30, 2020

    Subdivided Decagon

  77. two congruent rectangles and a semi-circle Jul 29, 2020

    Two Congruent Rectangles and a Semi-Circle

  78. a rectangle in a square Jul 26, 2020

    A Rectangle in a Square

  79. two half-squares and a circle Jul 25, 2020

    Two Half-Squares and a Circle

  80. three congruent rectangles ii Jul 23, 2020

    Three Congruent Rectangles II

  81. semi-circle in a square in a quarter circle Jul 19, 2020

    Semi-Circle in a Square in a Quarter Circle

  82. two triangles and three concentric semi-circles Jul 18, 2020

    Two Triangles and Three Concentric Semi-Circles

  83. five congruent rectangles Jul 15, 2020

    Five Congruent Rectangles

  84. five rectangles tiling a square Jul 11, 2020

    Five Rectangles Tiling a Square

  85. rectangle overlapping a circle Jul 5, 2020

    Rectangle Overlapping a Circle

  86. swirling semi-circles Jun 14, 2020

    Swirling Semi-Circles

  87. hexagon in a quarter circle May 31, 2020

    Hexagon in a Quarter Circle

  88. six semi-circles inside a hexagon May 30, 2020

    Six Semi-Circles Inside a Hexagon

  89. four quarter circles May 29, 2020

    Four Quarter Circles

  90. two overlapping triangles and a circle May 28, 2020

    Two Overlapping Triangles and a Circle

  91. two squares diagonally inside a rectangle May 26, 2020

    Two Squares Diagonally Inside a Rectangle

  92. two circles and two semi-circles May 25, 2020

    Two Circles and Two Semi-Circles

  93. two tilted squares May 23, 2020

    Two Tilted Squares

  94. a circle and two semi-circles in two hexagons May 14, 2020

    A Circle and Two Semi-Circles in Two Hexagons

  95. four squares overlapping a rectangle May 9, 2020

    Four Squares Overlapping a Rectangle

  96. two semi-circles and a triangle May 8, 2020

    Two Semi-Circles and a Triangle

  97. a square and a hexagon May 5, 2020

    A Square and a Hexagon

  98. five circles in a square May 2, 2020

    Five Circles in a Square

  99. two quarter circles in a rectangle in a semi-circle Apr 30, 2020

    Two Quarter Circles in a Rectangle in a Semi-Circle

  100. four squares ii Apr 28, 2020

    Four Squares II

  101. four squares Apr 26, 2020

    Four Squares

  102. two circles inside an equilateral triangle Apr 25, 2020

    Two Circles Inside an Equilateral Triangle

  103. three congruent rectangles Apr 24, 2020

    Three Congruent Rectangles

  104. four congruent squares inside a larger square Apr 23, 2020

    Four Congruent Squares Inside a Larger Square

  105. two semi-circles and an equilateral triangle Apr 22, 2020

    Two Semi-Circles and an Equilateral Triangle

  106. two quarter circles and a semi-circle Apr 21, 2020

    Two Quarter Circles and a Semi-Circle

  107. three stacked squares Apr 19, 2020

    Three Stacked Squares

  108. two circles in a square Apr 18, 2020

    Two Circles in a Square

  109. three overlapping rectangles ii Apr 17, 2020

    Three Overlapping Rectangles II

  110. semi-circle splitting a triangle Apr 16, 2020

    Semi-Circle Splitting a Triangle

  111. two semi-circles diagonally across a square Apr 15, 2020

    Two Semi-Circles Diagonally Across a Square

  112. two neighbouring rectangles Apr 13, 2020

    Two Neighbouring Rectangles

  113. two overlapping semi-circles Apr 12, 2020

    Two Overlapping Semi-Circles

  114. nested semi-circles Apr 11, 2020

    Nested Semi-Circles

  115. two circles in a triangle Apr 10, 2020

    Two Circles in a Triangle

  116. tangential hexagon and circle Apr 9, 2020

    Tangential Hexagon and Circle

  117. three overlapping rectangles Apr 8, 2020

    Three Overlapping Rectangles

  118. three circles forming a triangle Apr 7, 2020

    Three Circles Forming a Triangle

  119. four squares in a circle Apr 6, 2020

    Four Squares in a Circle

  120. three equal area rectangles Apr 5, 2020

    Three Equal Area Rectangles

  121. six equal area rectangles Apr 4, 2020

    Six Equal Area Rectangles

  122. angle formed by three squares Apr 2, 2020

    Angle Formed by Three Squares

  123. quadrilateral splitting a semi-circle Apr 1, 2020

    Quadrilateral Splitting a Semi-Circle

  124. two regular hexagons Mar 28, 2020

    Two Regular Hexagons

  125. three squares in a circle Mar 21, 2020

    Three Squares in a Circle

  126. two squares and an equilateral triangle Mar 14, 2020

    Two Squares and an Equilateral Triangle

  127. quarter circles in a rectangle in a circle Mar 7, 2020

    Quarter Circles in a Rectangle in a Circle

  128. nested isosceles triangles Mar 5, 2020

    Nested Isosceles Triangles

  129. five circles in a rectangle in a semi-circle Feb 29, 2020

    Five Circles in a Rectangle in a Semi-Circle

  130. two semi-circles inside a rectangle Feb 23, 2020

    Two Semi-Circles Inside a Rectangle

  131. two squares inside an equilateral triangle Feb 22, 2020

    Two Squares Inside an Equilateral Triangle

  132. tilted rectangle in a square Feb 20, 2020

    Tilted Rectangle in a Square

  133. circle in a quarter circle Feb 18, 2020

    Circle in a Quarter Circle

  134. three semi-circles Feb 16, 2020

    Three Semi-Circles

  135. a square and a rectangle overlapping Feb 14, 2020

    A Square and a Rectangle Overlapping

  136. three circles in a hexagon in a circle Feb 10, 2020

    Three Circles in a Hexagon in a Circle

  137. three circles Feb 8, 2020

    Three Circles

  138. three squares in a triangle Feb 4, 2020

    Three Squares in a Triangle

  139. four squares Feb 1, 2020

    Four Squares

  140. arcs in a semi-circle Jan 30, 2020

    Arcs in a Semi-Circle

  141. three isoscelese triangles inside a triangle Jan 23, 2020

    Three Isoscelese Triangles Inside a Triangle

  142. square and rectangle overlapping in a semi-circle Jan 16, 2020

    Square and Rectangle Overlapping in a Semi-Circle

  143. three stacked squares and a fourth square Jan 12, 2020

    Three Stacked Squares and a Fourth Square

  144. parallelogram area Jan 7, 2020

    Parallelogram Area

  145. three squares Jan 4, 2020

    Three Squares

  146. parallelogram in a rectangle Jan 1, 2020

    Parallelogram in a Rectangle

  147. three circles in a rectangle Dec 31, 2019

    Three Circles in a Rectangle

  148. two semi-circles inside a semi-circle Dec 29, 2019

    Two Semi-Circles Inside a Semi-Circle

  149. two squares Dec 28, 2019

    Two Squares

  150. pentagram in a circle Dec 24, 2019

    Pentagram in a Circle

  151. rectangle quartered by semi-circles Dec 23, 2019

    Rectangle Quartered by Semi-Circles

  152. chord dividing a triangle into two Dec 22, 2019

    Chord Dividing a Triangle into Two

  153. two pentagons Dec 20, 2019

    Two Pentagons

  154. two circles in a rectangle Dec 17, 2019

    Two Circles in a Rectangle

  155. angle formed by three rectangles Dec 14, 2019

    Angle Formed by Three Rectangles

  156. five semi-circles around a rectangle Dec 11, 2019

    Five Semi-Circles Around a Rectangle

  157. three equal angles in a rectangle Dec 7, 2019

    Three Equal Angles in a Rectangle

  158. a square, a circle, and a rectangle Dec 4, 2019

    A Square, A Circle, and a Rectangle

  159. three right-angled triangles Nov 30, 2019

    Three Right-Angled Triangles

  160. two rectangles overlapping a square Nov 24, 2019

    Two Rectangles Overlapping a Square

  161. areas in a crossed trapezium Nov 20, 2019

    Areas in a Crossed Trapezium

  162. seven hexagons Nov 18, 2019

    Seven Hexagons

  163. a pattern of squares Nov 17, 2019

    A Pattern of Squares

  164. three hexagons and a rectangle Nov 15, 2019

    Three Hexagons and a Rectangle

  165. six circles inside a circle inside a square Nov 9, 2019

    Six Circles Inside a Circle Inside a Square

  166. stacked squares inside two squares Nov 7, 2019

    Stacked Squares Inside Two Squares

  167. three squares inside a triangle Oct 30, 2019

    Three Squares Inside a Triangle

  168. three congruent triangles Oct 29, 2019

    Three Congruent Triangles

  169. two semi-circles inside a semi-circle ii Oct 27, 2019

    Two Semi-Circles Inside a Semi-Circle II

  170. multiple semi-circles Oct 25, 2019

    Multiple Semi-Circles

  171. two congruent rectangles in a square Oct 24, 2019

    Two Congruent Rectangles in a Square

  172. three circles in a rectangle ii Oct 19, 2019

    Three Circles in a Rectangle II

  173. overlapping triangles in a circle Oct 13, 2019

    Overlapping Triangles in a Circle

  174. diagonal in a square Oct 11, 2019

    Diagonal in a Square

  175. seven circles Oct 5, 2019

    Seven Circles

  176. angles in two hexagons Sep 28, 2019

    Angles in Two Hexagons

  177. three overlapping squares Sep 19, 2019

    Three Overlapping Squares

  178. four squares and a semi-circle Sep 7, 2019

    Four Squares and a Semi-Circle

  179. two overlapping hexagons and a rectangle Sep 2, 2019

    Two Overlapping Hexagons and a Rectangle

  180. two rectangles of equal area Aug 31, 2019

    Two Rectangles of Equal Area

  181. three squares overlapping a semi-circle Aug 29, 2019

    Three Squares Overlapping a Semi-Circle

  182. two hexagons and a square Aug 28, 2019

    Two Hexagons and a Square

  183. four hexagons Aug 26, 2019

    Four Hexagons

  184. two squares in a semi-circle Aug 24, 2019

    Two Squares in a Semi-Circle

  185. three squares in a semi-circle Aug 23, 2019

    Three Squares in a Semi-Circle

  186. three congruent squares overlapping a square Aug 22, 2019

    Three Congruent Squares Overlapping a Square

  187. three triangles in a square Aug 20, 2019

    Three Triangles in a Square

  188. trisected hexagon Aug 19, 2019

    Trisected Hexagon

  189. two congruent quadrilaterals and a rectangle Aug 16, 2019

    Two Congruent Quadrilaterals and a Rectangle

  190. semi-circle in a square Aug 14, 2019

    Semi-Circle in a Square

  191. circle in pentagon in semi-circle Aug 11, 2019

    Circle In Pentagon in Semi-Circle

  192. rectangles in concentric rings Aug 9, 2019

    Rectangles in Concentric Rings

  193. three regular hexagons Aug 8, 2019

    Three Regular Hexagons

  194. one rectangle inside another with semi-circles Aug 5, 2019

    One Rectangle Inside Another With Semi-Circles

  195. two rectangles and a semi-circle Aug 3, 2019

    Two Rectangles and a Semi-Circle

  196. three equilateral triangles and a semi-circle Aug 2, 2019

    Three Equilateral Triangles and a Semi-Circle

  197. three circles in a semi-circle Aug 1, 2019

    Three Circles in a Semi-Circle

  198. upside-down semi-circles in a semi-circle Jul 30, 2019

    Upside-Down Semi-Circles in a Semi-Circle

  199. stacked triangles Jul 29, 2019

    Stacked Triangles

  200. triangles in a dodecagon Jul 27, 2019

    Triangles in a Dodecagon

  201. angle formed by two squares ii Jul 26, 2019

    Angle Formed by Two Squares II

  202. three parallel semi-circles Jul 24, 2019

    Three Parallel Semi-Circles

  203. semi-circle in a right-angled triangle Jul 23, 2019

    Semi-Circle in a Right-Angled Triangle

  204. three congruent squares in a rectangle Jul 22, 2019

    Three Congruent Squares in a Rectangle

  205. three hexagons in a trapezium Jul 20, 2019

    Three Hexagons in a Trapezium

  206. stack of congruent rectangles Jun 28, 2019

    Stack of Congruent Rectangles

  207. angles in a circle Jun 27, 2019

    Angles in a Circle

  208. striped dodecagon Jun 24, 2019

    Striped Dodecagon

  209. two squares overlapping a third square Jun 15, 2019

    Two Squares Overlapping a Third Square

  210. three squares and a semi-circle Jun 7, 2019

    Three Squares and a Semi-Circle

  211. three congruent rectangles ii Jun 4, 2019

    Three Congruent Rectangles II

  212. rectangle, circle, and triangle Jun 1, 2019

    Rectangle, Circle, and Triangle

  213. two regular hexagons May 30, 2019

    Two Regular Hexagons

  214. angle in a circle and semi-circle May 28, 2019

    Angle in a Circle and Semi-Circle

  215. circle and two squares May 26, 2019

    Circle and Two Squares

  216. divided hexagon May 25, 2019

    Divided Hexagon

  217. two overlapping squares May 20, 2019

    Two Overlapping Squares

  218. two squares in a triangle May 19, 2019

    Two Squares in a Triangle

  219. a semi-circle and quarter circle in a square May 17, 2019

    A Semi-Circle and Quarter Circle in a Square

  220. overlapping triangle and hexagon May 14, 2019

    Overlapping Triangle and Hexagon

  221. overlapping triangle and rectangle May 10, 2019

    Overlapping Triangle and Rectangle

  222. divided hexagon ii May 8, 2019

    Divided Hexagon II

  223. semi-circle between two quarter circles May 6, 2019

    Semi-Circle Between Two Quarter Circles

  224. two squares and two equilateral triangles ii May 5, 2019

    Two Squares and Two Equilateral Triangles II

  225. two squares and two equilateral triangles iii May 5, 2019

    Two Squares and Two Equilateral Triangles III

  226. angles in two circles May 3, 2019

    Angles in Two Circles

  227. square with midpoints May 1, 2019

    Square with Midpoints

  228. angle formed by two squares Apr 28, 2019

    Angle Formed by Two Squares

  229. two circles inside two polygons inside a circle Apr 26, 2019

    Two Circles Inside Two Polygons Inside a Circle

  230. quartered hexagon Apr 24, 2019

    Quartered Hexagon

  231. two semi-circles in a square Apr 22, 2019

    Two Semi-Circles in a Square

  232. three semi-circles around a triangle Apr 20, 2019

    Three Semi-Circles Around a Triangle

  233. two overlapping squares ii Apr 18, 2019

    Two Overlapping Squares II

  234. two rectangles with diagonals Apr 17, 2019

    Two Rectangles with Diagonals

  235. two semi-circles and a rectangle Apr 16, 2019

    Two Semi-Circles and a Rectangle

  236. semi-circle on a hexagon Apr 14, 2019

    Semi-Circle on a Hexagon

  237. divided square Apr 12, 2019

    Divided Square

  238. three adjacent triangles Apr 10, 2019

    Three Adjacent Triangles

  239. triangle and circle inside square Apr 7, 2019

    Triangle and Circle Inside Square

  240. two squares on a triangle Apr 4, 2019

    Two Squares on a Triangle

  241. square, rectangle, and two semi-circles Apr 3, 2019

    Square, Rectangle, and Two Semi-Circles

  242. three triangles and a rectangle inside a circle Mar 30, 2019

    Three Triangles and a Rectangle Inside a Circle

  243. triangle inside a square Mar 26, 2019

    Triangle Inside a Square

  244. triangle inside circle and triangle Mar 20, 2019

    Triangle Inside Circle and Triangle

  245. circle in triangle in square Mar 17, 2019

    Circle in Triangle in Square

  246. quarter circles in a square in a circle Mar 16, 2019

    Quarter Circles in a Square in a Circle

  247. triangle overlapping a hexagon Mar 13, 2019

    Triangle Overlapping a Hexagon

  248. two circles in a triangle Mar 10, 2019

    Two Circles in a Triangle

  249. inverse star in a rectangle Mar 7, 2019

    Inverse Star in a Rectangle

  250. three overlapping circles Mar 3, 2019

    Three Overlapping Circles

  251. three tilted rectangles Mar 1, 2019

    Three Tilted Rectangles

  252. overlapping hexagons Feb 26, 2019

    Overlapping Hexagons

  253. square overlapping a quarter circle Feb 24, 2019

    Square Overlapping a Quarter Circle

  254. two hexagons in a rectangle Feb 23, 2019

    Two Hexagons in a Rectangle

  255. semi-circle in a circle Feb 22, 2019

    Semi-Circle in a Circle

  256. two triangles overlapping a rectangle Feb 21, 2019

    Two Triangles Overlapping a Rectangle

  257. square on an octagon Feb 19, 2019

    Square on an Octagon

  258. circle and semi-circle in triangle Feb 18, 2019

    Circle and Semi-Circle in Triangle

  259. overlapping triangles Feb 16, 2019

    Overlapping Triangles

  260. tilted rectangles Feb 13, 2019

    Tilted Rectangles

  261. triangle in semi-circle with square Feb 11, 2019

    Triangle in Semi-Circle with Square

  262. circles in overlapping triangles Feb 7, 2019

    Circles in Overlapping Triangles

  263. tilted triangles Feb 2, 2019

    Tilted Triangles

  264. two quarter circles in a square Jan 28, 2019

    Two Quarter Circles in a Square

  265. two squares and a rectangle in an octagon Jan 26, 2019

    Two Squares and a Rectangle in an Octagon

  266. square overlapping a circle Jan 25, 2019

    Square Overlapping a Circle

  267. six semi-circles in a circle Jan 21, 2019

    Six Semi-Circles in a Circle

  268. rectangle on a hexagon Jan 19, 2019

    Rectangle on a Hexagon

  269. two squares on a circle Jan 16, 2019

    Two Squares on a Circle

  270. pentagon with two semi-circles Jan 14, 2019

    Pentagon with two Semi-Circles

  271. striped hexagon Jan 13, 2019

    Striped Hexagon

  272. circle in a hexagon in a semi-circle Jan 11, 2019

    Circle in a Hexagon in a Semi-Circle

  273. overlapping rectangle and semi-circle Jan 5, 2019

    Overlapping Rectangle and Semi-Circle

  274. two rectangles in a semi-circle Dec 31, 2018

    Two Rectangles in a Semi-Circle

  275. divided hexagon iii Dec 30, 2018

    Divided Hexagon III

  276. circles around a triangle Dec 16, 2018

    Circles Around a Triangle

  277. rectangles stacked in a semi-circle Dec 12, 2018

    Rectangles Stacked in a Semi-Circle

  278. two circles, two squares Dec 11, 2018

    Two Circles, Two Squares

  279. subdivided square Dec 5, 2018

    Subdivided Square

  280. chords dividing a triangle into five Dec 3, 2018

    Chords Dividing a Triangle into Five

  281. three rectangles as a triangle Dec 1, 2018

    Three Rectangles as a Triangle

  282. partitioned square Nov 28, 2018

    Partitioned Square

  283. two squares overlapping a semi-circle Nov 26, 2018

    Two Squares Overlapping a Semi-Circle

  284. five triangles in a rectangle Nov 25, 2018

    Five Triangles in a Rectangle

  285. nested circles and a triangle Nov 24, 2018

    Nested Circles and a Triangle

  286. square in a triangle in a square Nov 23, 2018

    Square in a Triangle in a Square

  287. quarter circles in a rectangle Nov 22, 2018

    Quarter Circles in a Rectangle

  288. semi-circles in a quarter circle Nov 21, 2018

    Semi-Circles in a Quarter Circle

  289. three squares on a line Nov 19, 2018

    Three Squares on a Line

  290. nested circles and polygons Nov 18, 2018

    Nested Circles and Polygons

  291. semi-circle and tangents in a square Nov 17, 2018

    Semi-Circle and Tangents in a Square

  292. three regular hexagons ii Nov 14, 2018

    Three Regular Hexagons II

  293. triangles in a semi-circle Nov 13, 2018

    Triangles in a Semi-Circle

  294. equilateral triangles in a square Nov 12, 2018

    Equilateral Triangles in a Square

  295. three aligned triangles Nov 11, 2018

    Three Aligned Triangles

  296. crossed hexagon Nov 10, 2018

    Crossed Hexagon

  297. square in a semi-circle in a square Nov 8, 2018

    Square in a Semi-Circle in a Square

  298. two equilateral triangles in a semi-circle Nov 7, 2018

    Two Equilateral Triangles in a Semi-Circle

  299. three squares in a circle Nov 5, 2018

    Three Squares in a Circle

  300. square in a circle in a quarter circle in a square Nov 4, 2018

    Square in a Circle in a Quarter Circle in a Square

  301. arcs inside a triangle Nov 2, 2018

    Arcs Inside a Triangle

  302. quadrilateral from two squares in a square Oct 30, 2018

    Quadrilateral from Two Squares in a Square

  303. triangle centres and square corners Oct 29, 2018

    Triangle Centres and Square Corners

  304. hexagon and concentric circles Oct 28, 2018

    Hexagon and Concentric Circles

  305. chord and annulus Oct 27, 2018

    Chord and Annulus

  306. dissected hexagon Oct 26, 2018

    Dissected Hexagon

  307. circles in rhombii sequal Oct 26, 2018

    Circles in Rhombii Sequal

  308. circles in triangle and rhombus Oct 25, 2018

    Circles in Triangle and Rhombus

  309. circles resting on triangles Oct 24, 2018

    Circles Resting on Triangles

  310. arbelos Oct 23, 2018

    Arbelos

  311. four circles in a triangle in a circle Oct 22, 2018

    Four Circles in a Triangle in a Circle

  312. triangles with a parallelogram Oct 21, 2018

    Triangles with a Parallelogram

  313. three squares in a square Oct 18, 2018

    Three Squares in a Square

  314. two circles in an equilateral triangle Oct 17, 2018

    Two Circles in an Equilateral Triangle

  315. semi-circles in a square Oct 15, 2018

    Semi-Circles in a Square

  316. five rectangles in a square Oct 14, 2018

    Five Rectangles in a Square

  317. five overlapping circles Oct 11, 2018

    Five Overlapping Circles

  318. four regular polygons Oct 8, 2018

    Four Regular Polygons

  319. four squares around a quadrilateral Oct 7, 2018

    Four Squares Around a Quadrilateral

  320. two perpendicular equilateral triangles Oct 6, 2018

    Two Perpendicular Equilateral Triangles

  321. nested circles and polygons ii Oct 5, 2018

    Nested Circles and Polygons II

  322. spiralling semi-circles Oct 3, 2018

    Spiralling Semi-Circles

  323. five decreasing squares Oct 1, 2018

    Five Decreasing Squares

  324. triangle and semi-circle in a circle Sep 29, 2018

    Triangle and Semi-Circle in a Circle

  325. subdivided parallelogram Sep 27, 2018

    Subdivided Parallelogram

  326. triangle in four rectangles Sep 26, 2018

    Triangle in Four Rectangles

  327. circle in a trapezium Sep 24, 2018

    Circle in a Trapezium

  328. subdivided triangle Sep 19, 2018

    Subdivided Triangle

  329. two circles inside a square Sep 17, 2018

    Two Circles Inside a Square

  330. concentric semi-circles Sep 16, 2018

    Concentric Semi-Circles

  331. shaded spikes in a hexagon Sep 14, 2018

    Shaded Spikes in a Hexagon

  332. squares in an octagon Sep 11, 2018

    Squares in an Octagon

  333. four squares in a big square Sep 9, 2018

    Four Squares in a Big Square

  334. four stacked squares in a circle in a square Sep 8, 2018

    Four Stacked Squares in a Circle in a Square

  335. stacked boxes in circles in squares Sep 8, 2018

    Stacked Boxes in Circles in Squares

  336. overlapping square and circle Sep 6, 2018

    Overlapping Square and Circle

  337. two circles inscribed in triangles in a semi-circle Sep 3, 2018

    Two Circles Inscribed in Triangles in a Semi-Circle

  338. arcs in a circle Sep 1, 2018

    Arcs in a Circle

  339. six squares in a hexagon Aug 31, 2018

    Six Squares in a Hexagon

  340. four equilateral trangles round a square Aug 30, 2018

    Four Equilateral Trangles Round a Square

  341. two overlapping squares iii Aug 28, 2018

    Two Overlapping Squares III

  342. two isosceles triangles Aug 28, 2018

    Two Isosceles Triangles

  343. four isosceles triangles in a circle Aug 26, 2018

    Four Isosceles Triangles in a Circle

  344. hexagon in a star in a hexagon Aug 24, 2018

    Hexagon in a Star in a Hexagon

  345. stacked hexagons Aug 23, 2018

    Stacked Hexagons

  346. a square, triangle, and circle in a square Aug 22, 2018

    A Square, Triangle, and Circle in a Square

  347. region of an octagon Aug 21, 2018

    Region of an Octagon

  348. semi-circle in a square Aug 20, 2018

    Semi-Circle in a Square

  349. polygons with equal perimeter Aug 19, 2018

    Polygons with Equal Perimeter

  350. stacked shapes Aug 19, 2018

    Stacked Shapes

  351. four squares overlapping a circle Aug 17, 2018

    Four Squares Overlapping a Circle

  352. triangle in circle in triangle in semi-circle Aug 15, 2018

    Triangle in Circle in Triangle in Semi-Circle

  353. bell-ringing braids Aug 14, 2018

    Bell-Ringing Braids

  354. four equilateral triangles Aug 13, 2018

    FourEquilateralTriangles_small.jpg

  355. two squares and two equilateral triangles Aug 13, 2018

    Two Squares and Two Equilateral Triangles

  356. squares meeting in a circle Aug 12, 2018

    Squares Meeting in a Circle

  357. zig-zag triangles Aug 12, 2018

    Zig-zag Triangles

  358. four aligned squares Aug 10, 2018

    Four Aligned Squares

  359. lengths in a crossed trapezium Aug 9, 2018

    Lengths in a Crossed Trapezium

  360. three aligned squares Aug 9, 2018

    Three Aligned Squares

  361. overlapping squares Aug 8, 2018

    Overlapping Squares

  362. toppled square Aug 7, 2018

    Toppled Square

  363. two rectangles overlapping a circle Aug 2, 2018

    Two Rectangles Overlapping a Circle

  364. subdivided circles May 21, 2018

    Subdivided Circles

  365. two circles inside a triangle __

    Two Circles Inside a Triangle

  366. two overlapping congruent squares __

    Two Overlapping Congruent Squares

  367. rectangle and hexagon __

    Rectangle and Hexagon

  368. angle in two overlapping squares __

    Angle in Two Overlapping Squares

  369. three congruent rectangles __

    Three Congruent Rectangles

  370. three squares and an equilateral triangle __

    Three Squares and an Equilateral Triangle