Notes
Catriona Agg's puzzles 2018
Catriona Agg’s Geometry Puzzles from 2018
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two rectangles in a semi-circle Dec 31, 2018
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divided hexagon iii Dec 30, 2018
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circles around a triangle Dec 16, 2018
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rectangles stacked in a semi-circle Dec 12, 2018
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two circles, two squares Dec 11, 2018
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subdivided square Dec 5, 2018
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chords dividing a triangle into five Dec 3, 2018
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three rectangles as a triangle Dec 1, 2018
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partitioned square Nov 28, 2018
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two squares overlapping a semi-circle Nov 26, 2018
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five triangles in a rectangle Nov 25, 2018
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nested circles and a triangle Nov 24, 2018
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square in a triangle in a square Nov 23, 2018
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quarter circles in a rectangle Nov 22, 2018
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semi-circles in a quarter circle Nov 21, 2018
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three squares on a line Nov 19, 2018
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nested circles and polygons Nov 18, 2018
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semi-circle and tangents in a square Nov 17, 2018
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equilateral triangle in a hexagon Nov 17, 2018
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three regular hexagons Nov 14, 2018
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triangles in a semi-circle Nov 13, 2018
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equilateral triangles in a square Nov 12, 2018
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three aligned triangles Nov 11, 2018
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crossed hexagon Nov 10, 2018
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square in a semi-circle in a square Nov 8, 2018
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two equilateral triangles in a semi-circle Nov 7, 2018
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three squares in a circle Nov 5, 2018
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square in a circle in a quarter circle in a square Nov 4, 2018
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triangle in a circle in a quarter circle in a square Nov 4, 2018
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arcs inside a triangle Nov 2, 2018
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quadrilateral from two squares in a square Oct 30, 2018
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triangle centres and square corners Oct 29, 2018
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hexagon and concentric circles Oct 28, 2018
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chord and annulus Oct 27, 2018
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dissected hexagon Oct 26, 2018
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circles in rhombii sequal Oct 26, 2018
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circles in triangle and rhombus Oct 25, 2018
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circles resting on triangles Oct 24, 2018
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arbelos Oct 23, 2018
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four circles in a triangle in a circle Oct 22, 2018
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triangles with a parallelogram Oct 21, 2018
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three squares in a square Oct 18, 2018
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two circles in an equilateral triangle Oct 17, 2018
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semi-circles in a square Oct 15, 2018
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five rectangles in a square Oct 14, 2018
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five overlapping circles Oct 11, 2018
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four regular polygons Oct 8, 2018
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four squares around a quadrilateral Oct 7, 2018
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two perpendicular equilateral triangles Oct 6, 2018
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nested circles and polygons ii Oct 5, 2018
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spiralling semi-circles Oct 3, 2018
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five decreasing squares Oct 1, 2018
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triangle and semi-circle in a circle Sep 29, 2018
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subdivided parallelogram Sep 27, 2018
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triangle in four rectangles Sep 26, 2018
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circle in a trapezium Sep 24, 2018
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subdivided triangle Sep 19, 2018
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two circles inside a square Sep 17, 2018
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concentric semi-circles Sep 16, 2018
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shaded spikes in a hexagon Sep 14, 2018
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squares in an octagon Sep 11, 2018
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four squares in a big square Sep 9, 2018
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stacked boxes in circles in squares Sep 8, 2018
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four stacked squares in a circle in a square Sep 8, 2018
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overlapping square and circle Sep 6, 2018
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two circles inscribed in triangles in a semi-circle Sep 3, 2018
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arcs in a circle Sep 1, 2018
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six squares in a hexagon Aug 31, 2018
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four equilateral triangles round a square Aug 30, 2018
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two triangles in a rectangle Aug 29, 2018
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two overlapping squares iii Aug 28, 2018
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two isosceles triangles Aug 28, 2018
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four isosceles triangles in a circle Aug 26, 2018
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two octagons and two squares Aug 25, 2018
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hexagon in a star in a hexagon Aug 24, 2018
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stacked hexagons Aug 23, 2018
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a square, triangle, and circle in a square Aug 22, 2018
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region of an octagon Aug 21, 2018
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semi-circle in a square Aug 20, 2018
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polygons with equal perimeter Aug 19, 2018
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stacked shapes Aug 19, 2018
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four squares overlapping a circle Aug 17, 2018
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triangle in circle in triangle in semi-circle Aug 15, 2018
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bell-ringing braids Aug 14, 2018
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four equilateral triangles Aug 13, 2018
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three squares and two equilateral triangles Aug 13, 2018
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zig-zag triangles Aug 12, 2018
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squares meeting in a circle Aug 12, 2018
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four aligned squares Aug 10, 2018
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three aligned squares Aug 9, 2018
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lengths in a crossed trapezium Aug 9, 2018
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overlapping squares Aug 8, 2018
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toppled square Aug 7, 2018
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two rectangles overlapping a circle Aug 2, 2018
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subdivided circles May 21, 2018
