Notes
Catriona Agg's puzzles 2019
Catriona Agg’s Geometry Puzzles from 2019
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three circles in a rectangle Dec 31, 2019
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two semi-circles inside a semi-circle Dec 29, 2019
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two squares Dec 28, 2019
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three squares and an equilateral triangle Dec 26, 2019
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pentagram in a circle Dec 24, 2019
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rectangle quartered by semi-circles Dec 23, 2019
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chord dividing a triangle into two Dec 22, 2019
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two pentagons Dec 20, 2019
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two circles in a rectangle Dec 17, 2019
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angle formed by three rectangles Dec 14, 2019
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two rectangles in a square Dec 12, 2019
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five semi-circles around a rectangle Dec 11, 2019
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three equal angles in a rectangle Dec 7, 2019
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a square, a circle, and a rectangle Dec 4, 2019
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three right-angled triangles Nov 30, 2019
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two rectangles overlapping a square Nov 24, 2019
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areas in a crossed trapezium Nov 20, 2019
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seven hexagons Nov 18, 2019
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a pattern of squares Nov 17, 2019
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three hexagons and a rectangle Nov 15, 2019
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six circles inside a circle inside a square Nov 9, 2019
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stacked squares inside two squares Nov 7, 2019
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three squares inside a triangle Oct 30, 2019
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three congruent triangles Oct 29, 2019
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two semi-circles inside a semi-circle ii Oct 27, 2019
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multiple semi-circles Oct 25, 2019
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two congruent rectangles in a square Oct 24, 2019
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three circles in a rectangle ii Oct 19, 2019
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overlapping triangles in a circle Oct 13, 2019
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diagonal in a square Oct 11, 2019
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seven circles Oct 5, 2019
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angles in two hexagons Sep 28, 2019
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three overlapping squares Sep 19, 2019
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four squares and a semi-circle Sep 7, 2019
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two overlapping hexagons and a rectangle Sep 2, 2019
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two rectangles of equal area Aug 31, 2019
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three squares overlapping a semi-circle Aug 29, 2019
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two hexagons and a square Aug 28, 2019
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four hexagons Aug 26, 2019
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two squares in a semi-circle Aug 24, 2019
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three squares in a semi-circle Aug 23, 2019
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three congruent squares overlapping a square Aug 22, 2019
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three triangles in a square Aug 20, 2019
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trisected hexagon Aug 19, 2019
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two congruent quadrilaterals and a rectangle Aug 16, 2019
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semi-circle in a square ii Aug 14, 2019
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circle in pentagon in semi-circle Aug 11, 2019
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rectangles in concentric rings Aug 9, 2019
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three regular hexagons ii Aug 8, 2019
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one rectangle inside another with semi-circles Aug 5, 2019
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two rectangles and a semi-circle Aug 3, 2019
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three equilateral triangles and a semi-circle Aug 2, 2019
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three circles in a semi-circle Aug 1, 2019
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upside-down semi-circles in a semi-circle Jul 30, 2019
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stacked triangles Jul 29, 2019
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triangles in a dodecagon Jul 27, 2019
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angle formed by two squares ii Jul 26, 2019
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three parallel semi-circles Jul 24, 2019
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semi-circle in a right-angled triangle Jul 23, 2019
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three congruent squares in a rectangle Jul 22, 2019
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three hexagons in a trapezium Jul 20, 2019
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regular hexagon and rectangle Jul 12, 2019
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stack of congruent rectangles Jun 28, 2019
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angles in a circle Jun 27, 2019
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striped dodecagon Jun 24, 2019
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two squares overlapping a third square Jun 15, 2019
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three squares and a semi-circle Jun 7, 2019
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three congruent rectangles Jun 4, 2019
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rectangle, circle, and triangle Jun 1, 2019
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two regular hexagons May 30, 2019
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angle in a circle and semi-circle May 28, 2019
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circle and two squares May 26, 2019
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divided hexagon May 25, 2019
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two overlapping squares May 20, 2019
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two squares in a triangle May 19, 2019
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a semi-circle and quarter circle in a square May 17, 2019
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overlapping triangle and hexagon May 14, 2019
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overlapping triangle and rectangle May 10, 2019
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divided hexagon ii May 8, 2019
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semi-circle between two quarter circles May 6, 2019
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two squares and two equilateral triangles iii May 5, 2019
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two squares and two equilateral triangles ii May 5, 2019
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angles in two circles May 3, 2019
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square with midpoints May 1, 2019
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angle formed by two squares Apr 28, 2019
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two circles inside two polygons inside a circle Apr 26, 2019
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quartered hexagon Apr 24, 2019
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two semi-circles in a square Apr 22, 2019
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three semi-circles around a triangle Apr 20, 2019
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two overlapping squares ii Apr 18, 2019
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two rectangles with diagonals Apr 17, 2019
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two semi-circles and a rectangle Apr 16, 2019
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semi-circle on a hexagon Apr 14, 2019
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divided square Apr 12, 2019
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three adjacent triangles Apr 10, 2019
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triangle and circle inside square Apr 7, 2019
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two squares on a triangle Apr 4, 2019
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square, rectangle, and two semi-circles Apr 3, 2019
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three triangles and a rectangle inside a circle Mar 30, 2019
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triangle inside a square Mar 26, 2019
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triangle inside circle and triangle Mar 20, 2019
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circle in triangle in square Mar 17, 2019
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quarter circles in a square in a circle Mar 16, 2019
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triangle overlapping a hexagon Mar 13, 2019
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two circles in a triangle Mar 10, 2019
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inverse star in a rectangle Mar 7, 2019
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three overlapping circles Mar 3, 2019
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three tilted rectangles Mar 1, 2019
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overlapping hexagons Feb 26, 2019
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square overlapping a quarter circle Feb 24, 2019
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two hexagons in a rectangle Feb 23, 2019
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semi-circle in a circle Feb 22, 2019
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two triangles overlapping a rectangle Feb 21, 2019
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square on an octagon Feb 19, 2019
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circle and semi-circle in triangle Feb 18, 2019
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overlapping triangles Feb 16, 2019
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tilted rectangles Feb 13, 2019
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triangle in semi-circle with square Feb 11, 2019
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circles in overlapping triangles Feb 7, 2019
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tilted triangles Feb 2, 2019
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two quarter circles in a square Jan 28, 2019
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two squares and a rectangle in an octagon Jan 26, 2019
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square overlapping a circle Jan 25, 2019
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six semi-circles in a circle Jan 21, 2019
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rectangle on a hexagon Jan 19, 2019
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two squares on a circle Jan 16, 2019
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pentagon with two semi-circles Jan 14, 2019
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striped hexagon Jan 13, 2019
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circle in a hexagon in a semi-circle Jan 11, 2019
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overlapping rectangle and semi-circle Jan 5, 2019
