D is the mid-point of the side BC of the...

D is the mid-point of the side BC of the `DeltaABC`. The parallelogram CDEF lie between the same parallels CD and PQ, a parallel st. line of PQ through A. Prove that `DeltaABC` =parallelogram CDEF.

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CALCUTTA BOOK HOUSE-THEOREMS ON AREAS-EXERCISE-3

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