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Many Cyclic Quads (Posted on 2013-10-19) Difficulty: 3 of 5

Two circles Γ1 and Γ2 intersect at points P and Q.

Prove that there are infinitely many cyclic quadrilaterals
ABCD ( A and B on Γ1 and C and D on Γ2 ) such that

         AC∩BD is in the set {P,Q}.

See The Solution Submitted by Bractals    
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  Subject Author Date
SolutionSolutionHarry2013-10-26 11:42:12
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