Two regular pentagons share a vertex. What is the proportion red : green?
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Family ties
Category: Beginner
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Longing for spring
Four semicircles and three line segments. What’s the proportion yellow : orange?
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The double bottom
A regular hexagon and a square share a vertex. What is the area proportion square : hexagon?
A square contains a yellow right triangle with an area of 11. What is the square’s area?
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Almost sunk
A square contains a right triangle. What fraction is red?
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Going halfway
A regular hexagon contains a diagonal, a green equilateral triangle and a red triangle. Prove that the latter is isosceles.
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The triskelion
A circle containing an equilateral triangle and three squares. What fraction is purple?
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The consonant squares
Four squares and a rectangle. What’s the angle α?
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The forward lean
A square with a diagonal and an isosceles triangle. What fraction is brown?
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The skewed tree
A triangle with a line segment through its centroid and parallel to a side. What faction is dark green?