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Circle, Circle, Sphere! (Posted on 2004-08-26) Difficulty: 4 of 5
A circle of radius 2 is contained in the plane y=3.

A circle of radius 4 is contained in the plane y=7.

Both circles lie on the surface of a sphere.

What is the radius of the sphere?

See The Solution Submitted by SilverKnight    
Rating: 2.6667 (3 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
Answer Comment 8 of 8 |
The required radius is approximately 4.031123
  Posted by K Sengupta on 2008-08-22 00:54:45
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