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 Home > Shapes > Geometry It has become obvious that the Shapes category was in way over its head with all sorts of geometrical problems. So, the hard-core Geometry problems will now reside here, where they will fit in much better.
Two unit circles are completely enclosed by a ring of four identical circles. Find the minimum radius of the surrounding circles.

Note: A ring of circles is a set where each is externally tangent to exactly two others and they enclose a single region.

 (No Solution Yet, 1 Comments) Submitted on 2024-08-30 by Jer
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