##### Quadrilateral – Notes

**Quadrilaterals And Its Types**

Quadrilateral: A closed figure having four sides, four angles and four vertices.

Parallelogram: A quadrilateral in which, opposite sides are parallel and equal, opposite angles are equal, the diagonals bisects each other, each diagonal divides parallelogram into two congruent triangles and adjacent angles are supplementary.

Square: A parallelogram in which, all the sides are equal, diagonals are equal and perpendicular bisector and each diagonal divides a square into two congruent triangles.

Rectangle: A parallelogram in which, diagonals are equal and bisects each other, and each diagonal divides rectangle into two congruent triangles.

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CBSE Class 9th Maths 8 - Quadrilateral - Notes

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