A circle and two semicircles are nested as shown. What’s the proportion of their respective radii a : b : c ?
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The wheelbarrow
Tag: proportion
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The Pacman principle
In a circle, two congruent chords are connected in a point. A line segment is drawn through the circle center as shown, forming two angles. What is the proportion α : β?
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The blue diamond
Two isosceles triangles are placed as shown. What is the proportion of the line segments a and b?