Question

prove that if both pairs of opposite sides of a quadrilateral are equal then it is a parallelogram​. ​

Answer 1

Answer:

Theorem 47: If both pairs of opposite angles of a quadrilateral are equal, then it is a parallelogram. Theorem 48: If all pairs of consecutive angles of a quadrilateral are supplementary, then it is a parallelogram. ... Theorem 50: If the diagonals of a quadrilateral bisect each other, then it is a parallelogram .

Answer 2

Step-by-step explanation:

Theorem 47: If both pairs of opposite angles of a quadrilateral are equal, then it is a parallelogram. Theorem 48: If all pairs of consecutive angles of a quadrilateral are supplementary, then it is a parallelogram. ... Theorem 50: If the diagonals of a quadrilateral bisect each other, then it is a parallelogram.