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Circle Square (Posted on 2004-01-13) Difficulty: 2 of 5
In a square of side 4, I pack 4 circles of unit radius.

What's the largest circle I can fit into the center (such that it doesn't overlap the other circles)?

See The Solution Submitted by SilverKnight    
Rating: 2.3750 (8 votes)

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Please Note | Comment 8 of 15 |

In this case, (sqrt2)-1 = the diameter of the small circle. The radius would be half that. We should write r=((sqrt2)-1)/2

And I believe SilverKnight meant ... In a square of side 2, I pack 4 circles of unit radius.   Hugs. CeeAnne

Edited on October 20, 2004, 1:37 am

Edited on October 20, 2004, 1:39 am
  Posted by CeeAnne on 2004-10-19 23:42:01

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