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Sum of Two Angles (Posted on 2010-08-01) Difficulty: 3 of 5
Let D and E be points on sides AB and AC respectively of ΔABC.
Let the bisectors of /ABE and /ACD intersect in point F.

Prove that /BDC + /BEC = 2 /BFC.

See The Solution Submitted by Bractals    
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  Subject Author Date
SolutionSolutionHarry2010-08-03 20:16:17
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