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| Tetrahedron bounded by spheres (Posted on 2003-04-17) |
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A regular tetrahedron holds a sphere snugly within its four sides. A larger sphere surrounds the tetrahedron, just touching its four vertices. What is the ratio of radii of the two spheres?
Solution (short version)
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 | Comment 2 of 7 | 
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2:1
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Posted by Hank
on 2003-04-17 09:31:11 |
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