A rectangle with a semicircle, a quarter circle and a common tangent. What fraction is blue?
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The rolling mill
Tag: rectangle
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The holiday home
An isosceles triangle, a rectangle and two diagonals. What is the proportion green : blue?
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The cleaver
Four squares, a rectangle and a circle. What is the proportion brown : grey?
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Ice cube
A rectangle and a square. What is the proportion purple : blue?
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The hourglass
A rectangle with two crossing line segments. What’s the minimal shaded fraction?
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The pillbox
Three touching circles in a rectangle and a common tangent. What’s the angle?
Two similar rectangles. If the small one has area 4 what is the area of the large rectangle?
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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?
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The balancing block
A rectangle inside a square. One of its sides is tangent to the quarter circle. What fraction is green as x approaches 0?
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The color fan
Two congruent rectangles share a vertex. Given that the three coloured areas are equal, what is the width x?