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