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AECP (Posted on 2011-03-01) Difficulty: 3 of 5
Let ABC be any triangle; ABDE, BCFG, and CAHI parallelograms constructed externally on the sides of ABC; and P the intersection of lines FG and HI.

If AECP is a parallelogram, then prove that

area(ABDE) = area(BCFG) + area(CAHI).

See The Solution Submitted by Bractals    
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  Subject Author Date
SolutionSolutionHarry2011-03-01 14:10:36
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