Math, asked by dushyantsharma28, 3 months ago

9Prove that in a quadrilateral, if all pairs of adjacent angles are supplementary then it
is a parallelogram
is a parallelogram​

Answers

Answered by prabhas24480
3

Theorem 48: If all pairs of consecutive angles of a quadrilateral are supplementary, then it is a parallelogram. Theorem 49: If one pair of opposite sides of a quadrilateral is both equal and parallel, then it is a parallelogram.

Asp=360°

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