Four quarter circles of radius 1, each containing a square. What is the blue area?
Tag: triangle
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Below the tree line
A triangle is split in two. What is the area of the green quadrilateral in terms of lengths a and b?
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Tympanum II
A regular pentagon with a diagonal. What is the top angle of the isosceles triangle?
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The ramp
A right triangle is split in two. What is the maximum yellow fraction?
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The headphones
A unit square, a semicircle, a right triangle and an isosceles triangle. What is the total purple area?
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The tympanum
A regular pentagon with a diagonal and an extended side. What is the top angle of the isosceles triangle?
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The Eye of Horus
A semicircle containing two equilateral triangles containing a circle. What fraction is blue?
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Hard on portside
Two squares and two diagonals. Two areas are given. What is the total area?
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The swinging pyramid
A regular hexagon and two equilateral triangles share a vertex. What is the area proportion blue : yellow?
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The doors of perception
Two line segments and three rectangles, two of which have a given area. What is the yellow area?