perplexus.info :: Shapes : Tetrahedron bounded by spheres

Tetrahedron bounded by spheres (Posted on 2003-04-17)

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?

See The Solution Submitted by Bryan

Rating: 3.5000 (6 votes)

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Subject	Author	Date
answer	K Sengupta	2007-07-30 13:30:40
Solution	Antonio	2003-08-21 19:09:41
re: Solution (long and complicated version)	Charlie	2003-04-17 10:04:54
This is the solution	Charlie	2003-04-17 09:42:15
I get	jude	2003-04-17 09:41:56
Solution (short version)	Hank	2003-04-17 09:31:11
Solution (long and complicated version)	Hank	2003-04-17 09:30:41

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