Question

In a parallelogram opposite angles are equal , how ? With proof.
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Answer 1

Step-by-step explanation:

If the opposite angles in a quadrilateral are equal, then it is a parallelogram. ... We have to prove that ABCD A B C D is a parallelogram.

Answer 2

Step-by-step explanation:

Opposite Angles of a Parallelogram are equal

Given: Parallelogram ABCD. We know that alternate interior angles are equal. By ASA congruence criterion, two triangles are congruent to each other. Hence, it is proved that the opposite a