perplexus.info :: Shapes : The Five Touching Spheres 2

The Five Touching Spheres 2 (Posted on 2019-09-15)

Two balls of radius 2 and two balls of radius 6 are all externally tangent to each other. A fifth, smaller ball is tangent to all four balls. What is its radius?

See The Solution Submitted by Brian Smith

Rating: 4.0000 (1 votes)

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Subject	Author	Date
re: The Five Touching Spheres 2	kexegiho	2019-09-30 13:19:23
No Subject	kexegiho	2019-09-30 13:17:57
exact solution	Steven Lord	2019-09-18 02:50:14
iterative soln	Steven Lord	2019-09-16 02:06:06

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