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Topic: A Three Circle Problem
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K Sengupta

Posts: 114
Registered: 1/10/06
A Three Circle Problem
Posted: Oct 24, 2006 10:09 PM
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Three circles of radius d are drawn on the surface of a sphere of radius r. Each pair of circles touches externally and the three circles all lie in one hemisphere.
Determine the radius of a circle on the surface of the sphere which touches all three circles.

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