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Prove that if the point P lies in the interior of ABCD, then the parallelogram equals...

Prove that if the point P lies in the interior of ABCD, then the parallelogram equals twice the sum of ABP and CDP

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Answer #1

to make u understand better inside smaller parallelograms I have constructed h1 and h2. Without constructing h1 and h2 also we can can do but this is the proof behind that .

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