# Catriona Agg’s Puzzles from 2020

1. four triangles in a square Dec 31, 2020 2. zig-zag inside a rectangle Dec 30, 2020 3. five squares across a square Dec 23, 2020 4. two squares and a semi-circle Dec 13, 2020 5. two circles in a square ii Oct 31, 2020 6. triangles formed from rectangles Oct 29, 2020 7. three triangles in a circle in a triangle Oct 24, 2020 8. two quarter circles in a semi-circle Aug 31, 2020 9. circle inside a triangle Aug 28, 2020 10. similar rectangles Aug 26, 2020 11. two semi-circles in a circle Aug 21, 2020 12. semi-circle and quarter circle in a square Aug 17, 2020 13. multiple semi-circles in a circle Aug 15, 2020 14. four squares iii Aug 14, 2020 15. triangle over two rectangles Aug 7, 2020 16. subdivided decagon Jul 30, 2020 17. two congruent rectangles and a semi-circle Jul 29, 2020 18. a rectangle in a square Jul 26, 2020 19. two half-squares and a circle Jul 25, 2020 20. three congruent rectangles ii Jul 23, 2020 21. semi-circle in a square in a quarter circle Jul 19, 2020 22. two triangles and three concentric semi-circles Jul 18, 2020 23. five congruent rectangles Jul 15, 2020 24. five rectangles tiling a square Jul 11, 2020 25. rectangle overlapping a circle Jul 5, 2020 26. swirling semi-circles Jun 14, 2020 27. hexagon in a quarter circle May 31, 2020 28. six semi-circles inside a hexagon May 30, 2020 29. four quarter circles May 29, 2020 30. two overlapping triangles and a circle May 28, 2020 31. two squares diagonally inside a rectangle May 26, 2020 32. two circles and two semi-circles May 25, 2020 33. two tilted squares May 23, 2020 34. a circle and two semi-circles in two hexagons May 14, 2020 35. four squares overlapping a rectangle May 9, 2020 36. two semi-circles and a triangle May 8, 2020 37. a square and a hexagon May 5, 2020 38. five circles in a square May 2, 2020 39. 40. four squares ii Apr 28, 2020 41. four squares Apr 26, 2020 42. two circles inside an equilateral triangle Apr 25, 2020 43. three congruent rectangles Apr 24, 2020 44. four congruent squares inside a larger square Apr 23, 2020 45. two semi-circles and an equilateral triangle Apr 22, 2020 46. two quarter circles and a semi-circle Apr 21, 2020 47. three stacked squares Apr 19, 2020 48. two circles in a square Apr 18, 2020 49. three overlapping rectangles ii Apr 17, 2020 50. semi-circle splitting a triangle Apr 16, 2020 51. two semi-circles diagonally across a square Apr 15, 2020 52. two neighbouring rectangles Apr 13, 2020 53. two overlapping semi-circles Apr 12, 2020 54. nested semi-circles Apr 11, 2020 55. two circles in a triangle Apr 10, 2020 56. tangential hexagon and circle Apr 9, 2020 57. three overlapping rectangles Apr 8, 2020 58. three circles forming a triangle Apr 7, 2020 59. four squares in a circle Apr 6, 2020 60. three equal area rectangles Apr 5, 2020 61. six equal area rectangles Apr 4, 2020 62. angle formed by three squares Apr 2, 2020 63. quadrilateral splitting a semi-circle Apr 1, 2020 64. two regular hexagons Mar 28, 2020 65. three squares in a circle Mar 21, 2020 66. two squares and an equilateral triangle Mar 14, 2020 67. quarter circles in a rectangle in a circle Mar 7, 2020 68. nested isosceles triangles Mar 5, 2020 69. five circles in a rectangle in a semi-circle Feb 29, 2020 70. two semi-circles inside a rectangle Feb 23, 2020 71. two squares inside an equilateral triangle Feb 22, 2020 72. tilted rectangle in a square Feb 20, 2020 73. circle in a quarter circle Feb 18, 2020 74. three semi-circles Feb 16, 2020 75. a square and a rectangle overlapping Feb 14, 2020 76. three circles in a hexagon in a circle Feb 10, 2020 77. three circles Feb 8, 2020 78. three squares in a triangle Feb 4, 2020 79. four squares Feb 1, 2020 80. arcs in a semi-circle Jan 30, 2020 81. three isoscelese triangles inside a triangle Jan 23, 2020 82. 83. three stacked squares and a fourth square Jan 12, 2020 84. parallelogram area Jan 7, 2020 85. three squares Jan 4, 2020 86. parallelogram in a rectangle Jan 1, 2020 