### Kinds Of Quadrilaterals : Maths NCERT / CBSE Notes

We know that a

**quadrilateral**is a four sided**polygon**. We can differentiate**quadrilaterals**based upon the sides and the angles between sides.- A
**quadrilateral**with a**pair of opposite sides**parallel is called a**trapezium**. - If the
**non parallel sides**of the**trapezium**have the same length, then the**trapezium**is called an**isosceles trapezium**. - A
**quadrilateral**having exactly two distinct consecutive pairs of sides of equal length is called**kite**. - A
**quadrilateral**with**opposite sides parallel**and equal to each other is called a**parallelogram**.

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**Elements of a Parallelogram:**

**In a**

**Parallelogram**

- The sides which have a common vertex are called
**adjacent sides**. - Angles having one arm in common are called
**adjacent angles**. - Angles at the opposite vertices are called
**opposite angles**. - The lines joining the opposite vertices of the parallelogram are called
**diagonals**. - The
**diagonals**of a parallelogram are not equal.

**Property**: The

**opposite sides of a parallelogram**are equal.

**Property**: The

**opposite angles of a parallelogram**are of equal measure.

**Property**: The

**diagonals of a parallelogram**bisect each other.

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