# Quadrilaterals Class-8 RS Aggarwal ICSE Maths Goyal Brothers

**Quadrilaterals Class-8 RS Aggarwal** ICSE Maths Goyal Brothers Prakashan Solutions Chapter-17. We provide step by step Solutions of Exercise / lesson-17 **Quadrilaterals**** ** for ICSE **Class-8 RS** **Aggarwal** Mathematics.

Our Solutions contain all type Questions of Exe-17 A, Exe-17 B, Exe-17 C, (MCQ) and Mental Maths with Notes to develop skill and confidence. Visit official Website **CISCE** for detail information about ICSE Board Class-8 Mathematics.

**Quadrilaterals Class-8 RS Aggarwal** ICSE Maths Goyal Brothers Prakashan Solutions Chapter-17

**–: Select Topics :–**

**Notes on Quadrilaterals**

**quadrilateral**is a closed figure obtained by joining four point (with no three points col linear) in an order. Every

**quadrilateral**has :

**TYPES OF QUADRILATERALS**

1. **Trapezium :** It is quadrilateral in which one pair of opposite sides are parallel.

2. **Parallelogram :** It is a quadrilateral in which both the pairs of opposite sides are parallel.

3. **Rectangle :** It is a quadrilateral whose each angle is 90°.

4. **Rhombus :** It is a quadrilateral whose all the sides are equal.

5. **Square :** It is a quadrilateral whose all the sides are equal and each angle is 90°.

6. **Kite :** It is a quadrilateral in which two pairs of adjacent sides are equal.

**Note :**

- Square, rectangle and rhombus are all parallelograms.
- Kite and trapezium are not parallelograms.
- A square is a rectangle.
- A square is a rhombus.
- A parallelogram is a trapezium.

**PARALLELOGRAM:**

A parallelogram is a quadrilateral in which opposite sides are parallel

**PROPERTIES OF PARALLELOGRAM:**

1. A diagonal of a parallelogram divides it into two congruent triangles.

2. The opposite sides of a parallelogram are equal.

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

3. The opposite angles of a parallelogram are equal.

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

4. The diagonals of a parallelogram bisect each other.

**Theorem :** If the diagonals of a quadrilateral bisect each other, then it is a parallelogram.

**Exe-17-A Quadrilaterals Class-8 RS Aggarwal** ICSE Maths Goyal Brothers Prakashan Solutions

**Quadrilaterals Exe-17-(B, )Class-8 RS Aggarwal** ICSE Maths Goyal Brothers Prakashan Solutions

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**MCQs, Exe-17-(C, )Quadrilaterals Class-8 RS Aggarwal** ICSE Maths Goyal Brothers Prakashan Solutions

Multiple Choice Questions

Choose the correct option in each of the following

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**Mental Maths Quadrilaterals Chapter-17 Class-8 RS Aggarwal**

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