Question

prove that opposite sides and opposite angles of parallelogram are congruent

in detail

otherwise I will report you​

Answer 1

Answer:

There are six important properties of parallelograms to know:

Opposite sides are congruent (AB = DC).

Opposite angels are congruent (D = B).

Consecutive angles are supplementary (A + D = 180°).

If one angle is right, then all angles are right.

The diagonals of a parallelogram bisect each other.

ASA postulate

The ASA postulate is most likely the only thing we can use to prove that the opposite sides of a parallelogram are congruent.

THEOREM: If a quadrilateral has 2 sets of opposite sides congruent, then it is a parallelogram. THEOREM: If a quadrilateral has 2 sets of opposite angles congruent, then it is a parallelogram.