Question

what condition are necessary for a quadrilateral became parallelogram

Answer 1

-one pair should be equal and parallel
-opposite sides should be parallel
-diagonal should bisect the quad into two congruent triangles...
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Answer 2

☘️ Answer:-

For a quadrilateral to be a parallelogram, one of the following conditions must hold.

1. Both pair of opposite sides are parallel.
2. One pair of opposite sides are equal and parallel.