perplexus.info :: Shapes : The Five Touching Spheres

The Five Touching Spheres (Posted on 2019-08-25)

Three balls of radius 2 are all tangent to one another as well as to a ball of radius 6. A fifth, smaller ball is tangent to all four balls. What is its radius?

No Solution Yet Submitted by Danish Ahmed Khan

Rating: 5.0000 (1 votes)

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| Comment 8 of 21 |

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Posted by mike harish on 2020-02-18 11:39:28

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