# Catriona Agg's Puzzles from 2020 1. [[four triangles in a square]] _Dec 31, 2020_ +-- {.miniimage} [[FourTrianglesinaSquare_small.png:pic]] =-- 1. [[zig-zag inside a rectangle]] _Dec 30, 2020_ +-- {.miniimage} [[ZigzagInsideaRectangle_small.png:pic]] =-- 1. [[five squares across a square]] _Dec 23, 2020_ +-- {.miniimage} [[FiveSquaresAcrossaSquare_small.png:pic]] =-- 1. [[two squares and a semi-circle]] _Dec 13, 2020_ +-- {.miniimage} [[TwoSquaresandaSemiCircle_small.png:pic]] =-- 1. [[two circles in a square ii]] _Oct 31, 2020_ +-- {.miniimage} [[TwoCirclesinaSquareII_small.png:pic]] =-- 1. [[triangles formed from rectangles]] _Oct 29, 2020_ +-- {.miniimage} [[TrianglesFormedfromRectangles_small.png:pic]] =-- 1. [[three triangles in a circle in a triangle]] _Oct 24, 2020_ +-- {.miniimage} [[ThreeTrianglesinaCircleinaTriangle_small.png:pic]] =-- 1. [[two quarter circles in a semi-circle]] _Aug 31, 2020_ +-- {.miniimage} [[TwoQuarterCirclesinaSemiCircle_small.png:pic]] =-- 1. [[circle inside a triangle]] _Aug 28, 2020_ +-- {.miniimage} [[CircleInsideaTriangle_small.png:pic]] =-- 1. [[similar rectangles]] _Aug 26, 2020_ +-- {.miniimage} [[SimilarRectangles_small.png:pic]] =-- 1. [[two semi-circles in a circle]] _Aug 21, 2020_ +-- {.miniimage} [[TwoSemiCirclesinaCircle_small.png:pic]] =-- 1. [[semi-circle and quarter circle in a square]] _Aug 17, 2020_ +-- {.miniimage} [[SemiCircleandQuarterCircleinaSquare_small.png:pic]] =-- 1. [[multiple semi-circles in a circle]] _Aug 15, 2020_ +-- {.miniimage} [[MultipleSemiCirclesinaCircle_small.png:pic]] =-- 1. [[four squares iv]] _Aug 14, 2020_ +-- {.miniimage} [[FourSquaresIV_small.png:pic]] =-- 1. [[triangle over two rectangles]] _Aug 7, 2020_ +-- {.miniimage} [[TriangleOverTwoRectangles_small.png:pic]] =-- 1. [[subdivided decagon]] _Jul 30, 2020_ +-- {.miniimage} [[SubdividedDecagon_small.png:pic]] =-- 1. [[two congruent rectangles and a semi-circle]] _Jul 29, 2020_ +-- {.miniimage} [[TwoCongruentRectanglesandaSemiCircle_small.png:pic]] =-- 1. [[a rectangle in a square]] _Jul 26, 2020_ +-- {.miniimage} [[ARectangleinaSquare_small.png:pic]] =-- 1. [[two half-squares and a circle]] _Jul 25, 2020_ +-- {.miniimage} [[TwoHalfSquaresandaCircle_small.png:pic]] =-- 1. [[three congruent rectangles iii]] _Jul 23, 2020_ +-- {.miniimage} [[ThreeCongruentRectanglesIII_small.png:pic]] =-- 1. [[Squares and a Semi-Circle]] _Jul 22, 2020_ +-- {.miniimage} [[SquaresandaSemiCircle_small.png:pic]] =-- 1. [[semi-circle in a square in a quarter circle]] _Jul 19, 2020_ +-- {.miniimage} [[SemiCircleinaSquareinaQuarterCircle_small.png:pic]] =-- 1. [[two triangles and three concentric semi-circles]] _Jul 18, 2020_ +-- {.miniimage} [[TwoTrianglesandThreeConcentricSemiCircles_small.png:pic]] =-- 1. [[five congruent rectangles]] _Jul 15, 2020_ +-- {.miniimage} [[FiveCongruentRectangles_small.png:pic]] =-- 1. [[three squares iv]] _Jul 12, 202_ +-- {.miniimage} [[ThreeSquaresIV_small.png:pic]] =-- 1. [[five rectangles tiling a square]] _Jul 11, 2020_ +-- {.miniimage} [[FiveRectanglesTilingaSquare_small.png:pic]] =-- 1. [[rectangle overlapping a circle]] _Jul 5, 2020_ +-- {.miniimage} [[RectangleOverlappingaCircle_small.png:pic]] =-- 1. [[swirling semi-circles]] _Jun 14, 2020_ +-- {.miniimage} [[SwirlingSemiCircles_small.png:pic]] =-- 1. [[hexagon in a quarter circle]] _May 31, 2020_ +-- {.miniimage} [[HexagoninaQuarterCircle_small.png:pic]] =-- 1. [[six semi-circles inside a hexagon]] _May 30, 2020_ +-- {.miniimage} [[SixSemiCirclesInsideaHexagon_small.png:pic]] =-- 1. [[four quarter circles]] _May 29, 2020_ +-- {.miniimage} [[FourQuarterCircles_small.png:pic]] =-- 1. [[two overlapping triangles and a circle]] _May 28, 2020_ +-- {.miniimage} [[TwoOverlappingTrianglesandaCircle_small.png:pic]] =-- 1. [[two squares diagonally inside a rectangle]] _May 26, 2020_ +-- {.miniimage} [[TwoSquaresDiagonallyInsideaRectangle_small.png:pic]] =-- 1. [[two circles and two semi-circles]] _May 25, 2020_ +-- {.miniimage} [[TwoCirclesandTwoSemiCircles_small.png:pic]] =-- 1. [[two tilted squares]] _May 23, 2020_ +-- {.miniimage} [[TwoTiltedSquares_small.png:pic]] =-- 1. [[a circle and two semi-circles in two hexagons]] _May 14, 2020_ +-- {.miniimage} [[ACircleandTwoSemiCirclesinTwoHexagons_small.png:pic]] =-- 1. [[four squares overlapping a rectangle]] _May 9, 2020_ +-- {.miniimage} [[FourSquaresOverlappingaRectangle_small.png:pic]] =-- 1. [[two semi-circles and a triangle]] _May 8, 2020_ +-- {.miniimage} [[TwoSemiCirclesandaTriangle_small.png:pic]] =-- 1. [[a square and a hexagon]] _May 5, 2020_ +-- {.miniimage} [[ASquareandaHexagon_small.png:pic]] =-- 1. [[five circles in a square]] _May 2, 2020_ +-- {.miniimage} [[FiveCirclesinaSquare_small.png:pic]] =-- 1. [[two quarter circles in a rectangle in a semi-circle]] _Apr 30, 2020_ +-- {.miniimage} [[TwoQuarterCirclesinaRectangleinaSemiCircle_small.png:pic]] =-- 1. [[four squares iii]] _Apr 28, 2020_ +-- {.miniimage} [[FourSquaresIII_small.png:pic]] =-- 1. [[four squares ii]] _Apr 26, 2020_ +-- {.miniimage} [[FourSquaresII_small.png:pic]] =-- 1. [[two circles inside an equilateral triangle]] _Apr 25, 2020_ +-- {.miniimage} [[TwoCirclesInsideanEquilateralTriangle_small.png:pic]] =-- 1. [[three congruent rectangles ii]] _Apr 24, 2020_ +-- {.miniimage} [[ThreeCongruentRectanglesII_small.png:pic]] =-- 1. [[four congruent squares inside a larger square]] _Apr 23, 2020_ +-- {.miniimage} [[FourCongruentSquaresInsideaLargerSquare_small.png:pic]] =-- 1. [[two semi-circles and an equilateral triangle]] _Apr 22, 2020_ +-- {.miniimage} [[TwoSemiCirclesandanEquilateralTriangle_small.png:pic]] =-- 1. [[two quarter circles and a semi-circle]] _Apr 21, 2020_ +-- {.miniimage} [[TwoQuarterCirclesandaSemiCircle_small.png:pic]] =-- 1. [[three stacked squares]] _Apr 19, 2020_ +-- {.miniimage} [[ThreeStackedSquares_small.png:pic]] =-- 1. [[two circles in a square]] _Apr 18, 2020_ +-- {.miniimage} [[TwoCirclesinaSquare_small.png:pic]] =-- 1. [[three overlapping rectangles ii]] _Apr 17, 2020_ +-- {.miniimage} [[ThreeOverlappingRectanglesII_small.png:pic]] =-- 1. [[semi-circle splitting a triangle]] _Apr 16, 2020_ +-- {.miniimage} [[SemiCircleSplittingaTriangle_small.png:pic]] =-- 1. [[two semi-circles diagonally across a square]] _Apr 15, 2020_ +-- {.miniimage} [[TwoSemiCirclesDiagonallyAcrossaSquare_small.png:pic]] =-- 1. [[two neighbouring rectangles]] _Apr 13, 2020_ +-- {.miniimage} [[TwoNeighbouringRectangles_small.png:pic]] =-- 1. [[two overlapping semi-circles]] _Apr 12, 2020_ +-- {.miniimage} [[TwoOverlappingSemiCircles_small.png:pic]] =-- 1. [[nested semi-circles]] _Apr 11, 2020_ +-- {.miniimage} [[NestedSemiCircles_small.png:pic]] =-- 1. [[two circles in a triangle ii]] _Apr 10, 2020_ +-- {.miniimage} [[TwoCirclesinaTriangleII_small.png:pic]] =-- 1. [[tangential hexagon and circle]] _Apr 9, 2020_ +-- {.miniimage} [[TangentialHexagonandCircle_small.png:pic]] =-- 1. [[three overlapping rectangles]] _Apr 8, 2020_ +-- {.miniimage} [[ThreeOverlappingRectangles_small.png:pic]] =-- 1. [[three circles forming a triangle]] _Apr 7, 2020_ +-- {.miniimage} [[ThreeCirclesFormingaTriangle_small.png:pic]] =-- 1. [[four squares in a circle]] _Apr 6, 2020_ +-- {.miniimage} [[FourSquaresinaCircle_small.png:pic]] =-- 1. [[three equal area rectangles]] _Apr 5, 2020_ +-- {.miniimage} [[ThreeEqualAreaRectangles_small.png:pic]] =-- 1. [[six equal area rectangles]] _Apr 4, 2020_ +-- {.miniimage} [[SixEqualAreaRectangles_small.png:pic]] =-- 1. [[angle formed by three squares]] _Apr 2, 2020_ +-- {.miniimage} [[AngleFormedbyThreeSquares_small.png:pic]] =-- 1. [[quadrilateral splitting a semi-circle]] _Apr 1, 2020_ +-- {.miniimage} [[QuadrilateralSplittingaSemiCircle_small.png:pic]] =-- 1. [[two regular hexagons ii]] _Mar 28, 2020_ +-- {.miniimage} [[TwoRegularHexagonsII_small.png:pic]] =-- 1. [[three squares in a circle ii]] _Mar 21, 2020_ +-- {.miniimage} [[ThreeSquaresinaCircleII_small.png:pic]] =-- 1. [[rectangle across a rectangle]] _Mar 16, 2020_ +-- {.miniimage} [[RectangleAcrossaSquare_small.png:pic]] =-- 1. [[two squares and an equilateral triangle]] _Mar 14, 2020_ +-- {.miniimage} [[TwoSquaresandanEquilateralTriangle_small.png:pic]] =-- 1. [[quarter circles in a rectangle in a circle]] _Mar 7, 2020_ +-- {.miniimage} [[QuarterCirclesinaRectangleinaCircle_small.png:pic]] =-- 1. [[nested isosceles triangles]] _Mar 5, 2020_ +-- {.miniimage} [[NestedIsoscelesTriangles_small.png:pic]] =-- 1. [[five circles in a rectangle in a semi-circle]] _Feb 29, 2020_ +-- {.miniimage} [[FiveCirclesinaRectangleinaSemiCircle_small.png:pic]] =-- 1. [[two semi-circles inside a rectangle]] _Feb 23, 2020_ +-- {.miniimage} [[TwoSemiCirclesInsideaRectangle_small.png:pic]] =-- 1. [[two squares inside an equilateral triangle]] _Feb 22, 2020_ +-- {.miniimage} [[TwoSquaresInsideanEquilateralTriangle_small.png:pic]] =-- 1. [[tilted rectangle in a square]] _Feb 20, 2020_ +-- {.miniimage} [[TiltedRectangleinaSquare_small.png:pic]] =-- 1. [[circle in a quarter circle]] _Feb 18, 2020_ +-- {.miniimage} [[CircleinaQuarterCircle_small.png:pic]] =-- 1. [[three semi-circles]] _Feb 16, 2020_ +-- {.miniimage} [[ThreeSemiCircles_small.png:pic]] =-- 1. [[a square and a rectangle overlapping]] _Feb 14, 2020_ +-- {.miniimage} [[ASquareandaRectangleOverlapping_small.png:pic]] =-- 1. [[three circles in a hexagon in a circle]] _Feb 10, 2020_ +-- {.miniimage} [[ThreeCirclesinaHexagoninaCircle_small.png:pic]] =-- 1. [[three circles]] _Feb 8, 2020_ +-- {.miniimage} [[ThreeCircles_small.png:pic]] =-- 1. [[three squares in a triangle]] _Feb 4, 2020_ +-- {.miniimage} [[ThreeSquaresinaTriangle_small.png:pic]] =-- 1. [[four squares]] _Feb 1, 2020_ +-- {.miniimage} [[FourSquares_small.png:pic]] =-- 1. [[arcs in a semi-circle]] _Jan 30, 2020_ +-- {.miniimage} [[ArcsinaSemiCircle_small.png:pic]] =-- 1. [[three isoscelese triangles inside a triangle]] _Jan 23, 2020_ +-- {.miniimage} [[ThreeIsosceleseTrianglesInsideaTriangle_small.png:pic]] =-- 1. [[square and rectangle overlapping in a semi-circle]] _Jan 16, 2020_ +-- {.miniimage} [[SquareandRectangleOverlappinginaSemiCircle_small.png:pic]] =-- 1. [[three stacked squares and a fourth square]] _Jan 12, 2020_ +-- {.miniimage} [[ThreeStackedSquaresandaFourthSquare_small.png:pic]] =-- 1. [[parallelogram area]] _Jan 7, 2020_ +-- {.miniimage} [[ParallelogramArea_small.png:pic]] =-- 1. [[three squares]] _Jan 4, 2020_ +-- {.miniimage} [[ThreeSquares_small.png:pic]] =-- 1. [[parallelogram in a rectangle]] _Jan 1, 2020_ +-- {.miniimage} [[ParallelograminaRectangle_small.png:pic]] =--