An equilateral triangle with three congruent squares. What’s the angle α?
Two congruent rectangles and squares. Proof that the four points are on one circle.
A circle containing three squares. What fraction is coloured?
A regular hexagon and three squares. What is the proportion yellow : brown?
Four squares and five shared vertices. If the orange area is 4, what is the green area?
A square, two equilateral triangles and an extended side. What is the proportion yellow : blue?
A square contains three squares (black sides), one of which has an extended side (blue). What is the proportion yellow : blue?
A square, a triangle and two equal angles. What is the angle α?
A square with four congruent equilateral triangles. What fraction is yellow?
Two squares, three circles and a common tangent. What fraction is coloured?