[" Theorem "8.3" If each pair of opposite sides of a quadrilateral is equal,then "],[" is a parallelogram."]

Theorem 8.3 : If each pair of opposite sides of a quadrilateral is equal, then it is a parallelogram.

Theorem 8.3 : If each pair of opposite sides of a quadrilateral is equal, then it is a parallelogram.

If each pair of opposite sides of a quadrilateral is equal, then it is a

If each pair of opposite sides of a quadrilateral is equal, then prove that it is a parallelogram.

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

State the converses of the following statement. In each case, also decide whether the converse is true or false.:- If each pair of opposite sides of a quadrilateral is equal, then the quadrilateral is a parallelogram.

If the opposite sides of a quadrilateral are equal, prove that the quadrilateral is a parallelogram.

Theorem 8.5 : If in a quadrilateral, each pair of opposite angles is equal, then it is a parallelogram.

Apply vectors to prove that if a pair of opposite sides of quadrilateral are equal and parallel, then the figure is a parallelogram.