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What is the radius of small circle in the given image?

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If a half-circle exist with radius 2 and with two identical half-circles each of radius 1 on its straight edge, there exists a circle in between the two half-circles, touching their edges as well as the top of the large semicircle.

What is the radius of this small circle?

find the radius of small circle

posted May 1, 2017 by anonymous

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