Thread: Increasing (or decreasing) a block size
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Old 06-25-2014, 11:31 AM
  #10  
Havplenty
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Join Date: Dec 2010
Location: MO (the Show Me state)
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On now this is really deep.

Originally Posted by ghostrider View Post
The doubling is of the square formed by the diagonals of the four inset squares. Socrates explained it best.
http://www.cut-the-knot.org/proofs/half_sq.shtml
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