Two squares and a rectangle. What is area of the rectangle in terms of square sides a and b?
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The red sash
Tag: area
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The star gazer
A square divided by a diagonal and another line segment. What fraction of its area is purple?
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Tomba La Bomba
Three regular hexagons inside a circle. Two shared vertices and five vertices on the circle. What’s red : green?
A semicircle, a square and a chord. If the square has area 32, what is the semicircle area?
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The dome tent
A rectangle with a diagonal and an inscribed semicircle. What is red : green : blue?
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The tightrope dancer
A circle containing an isosceles and two equilateral triangles. What is the proportion orange : blue?
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The hidden pyramid
A triangle with an inscribed equilateral triangle. If areas A and B add up to C, what are the proportions A : B : C?
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The chess board
A square is divided by six line segments. What fraction is brown?
A unit circle with an inscribed square and four semicircles. What’s the sum of the semicircle areas?
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Down to earth
Two equilateral triangles share a vertex. What is the proportion red : green?