Two rectangles contain 6 congruent circles. The common rectangle side passes through the top centre. What’s yellow : red?
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The ball pit
Tag: area
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The beehive
Three regular hexagons, one centre and a triangle. What fraction of the total area is orange?
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Launch the ball
Express the circle area in terms of the isosceles triangle area A and its side length a.
Author: Marshall W. Buck
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A walk in the park
Two squares sharing a vertex and a line segment. What’s the yellow area?
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The chessboard hallucination
Behold a 13-14-15 triangle. The 15-long side is dissected into 5 equal parts and the 14-long side is dissected into 7 equal parts. What is the difference between the red and green areas?
Author: Marshall W. Buck.
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The personal letter
Two rectangles share two vertices. What’s the green fraction?
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Tumbler doll II
Three squares and a circle. The red point is a common intersection of two square sides and the circle. What is blue : green?
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The Suresh triplet
Two squares share a vertex. What’s blue : green : orange?
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To the max
Two squares and two line segments. If the angle α is maximal, what is yellow : red?
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The douche cabine
A square containing three smaller squares and a quarter circle. What fraction is orange?