Another Condition for a Quadrilateral to be a Parallelogram | Theorem 8.8 | Examples

Can a quadrilateral ABCD be a parallelogram, if angleD + angleB = 180^@ ?

Necessary Condition For Equal to be Parallelogram||Parallelogram to be Rectangle||Parallelogram to be rhombus||Rhombus to be square and Rectangle to be square||Ex-8.1 Discussion

Parallelogram|Properties Of A Parallelogram|NCERT Examples

A quadrilateral is a parallelogram if its opposite sides are equal.

A quadrilateral is a parallelogram if its opposite sides are equal.

Introduction|Quadrilaterals|Types Of Quadrilaterals|Properties Of A Parallelogram|Theorem|OMR

Which of the following statements are true (T) and which are false (F)? In a parallelogram, the diagonals are equal. In a parallelogram, the diagonals bisect each other. In a parallelogram, the diagonals intersect each other at right angles. In any quadrilateral, if a pair of opposite sides is equal, it is a parallelogram. If all the angles of a quadrilateral are equal, it is a parallelogram. If three sides of a quadrilateral are equa, it is a parallelogram. If three angles of a quadrilateral are equal, it is a parallelogram. If all the sides of a quadrilateral are equal it is a parallelogram