A rectangle inside a rectangle. What is the green area?
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Corner to corner
Tag: rectangle
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The ball pit
Two rectangles contain 6 congruent circles. The common rectangle side passes through the top centre. What’s yellow : red?
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Shine your light
A quarter circle of radius 1, a rectangle touching the circle in an arbitrary point and a yellow quadrilateral. What is the minimal perimeter of this quadrilateral?
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The small cog
Two circles, a rectangle and two line segments. Prove that the red points are collinear.
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The personal letter
Two rectangles share two vertices. What’s the green fraction?
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A tight squeeze
Two intersecting circles inside a rectangle and a line segment connecting vertex, intersection point and tangency point. What’s the angle α?
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The dug-in heel
A rectangle containing a right triangle. What’s red : blue?
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The sunny side
An equilateral triangle inside a rectangle. What’s red : yellow : blue?
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North by Northwest
An equilateral triangle and a rectangle. What’s the angle α?
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Crossing mountains
A rectangle with four line segments. What’s brown : blue?