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Edited By Ramraj Saini | Updated on Mar 18, 2024 12:46 PM IST

The Quadrilaterals is the NCERT chapter in which The comprehensive notes for the concept of Quadrilaterals cover the following concepts in detail: Definition of Quadrilaterals, Type of Quadrilaterals, properties of Quadrilaterals. The NCERT Class 9 Math Chapter 8 Notes covers a brief outline of the chapter Quadrilaterals. The main topics covered are Quadrilaterals, Definition of Quadrilaterals, Type of Quadrilaterals, properties of Quadrilaterals, the Quadrilaterals class 9 notes with some FAQs. Class 9 math Chapter 8 notes contain important formulas. CBSE class 9 math Chapter 8 notes contain systematic explanations of topics using examples and exercises. In notes for class 9 math Chapter 8, topics are explained step by step. These topics can be downloaded from Quadrilaterals class 9 notes pdf download.

**Scholarship Test:** **Vidyamandir Intellect Quest (VIQ)**

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**Also, students can refer,**

- NCERT Class 9 Maths Notes
- NCERT Solutions for Class 9 Maths Chapter 8 Quadrilaterals
- NCERT Exemplar Class 9 Maths Chapter 8 Solutions Quadrilaterals

**Define A Quadrilaterals**

Four points are joined in a particular order to obtain a closed figure called quadrilaterals.

Consider below a quadrilateral ABCD:

HERE sides are AB, BC, CD, and DA. and diagonal are AC, BD.

**Types of The Quadrilaterals**

Square

Rectangle

Rhombus

Parallelogram

Trapezoidal

**Square**: - Square has four sides equal and all sides are perpendicular to each other.

Sides are AB, BC, CD, and DA, and diagonals are AC, BD.

In the square, all the sides are perpendicular to each other, and the diagonal is also perpendicular to each other.

**Rectangle**: - Rectangle has two opposite sides equal and all sides are perpendicular to each other.

Suppose sides are AB, BC, CD, and DA and diagonals are AC, BD. All the sides are perpendicular to each other and diagonal may not be perpendicular to each other.

i.e. AB ⊥ BC, BC ⊥CD

**Rhombus**: - Rhombus have four sides equal and all sides are perpendicular to each other.

Consider AB, BC, CD, and DA as sides of a rhombus, and diagonals are AC, BD. All the sides are not perpendicular to each other and diagonal also perpendicular to each other.

i.e. CD ⊥ DA

**Parallelogram**: - Parallelograms have both opposite sides equal and parallel to each other.

Consider AB, BC, CD, and DA as sides of the parallelogram. Two opposite sides are parallel and equal to each other and the diagonal may not be equal.

**Trapezoidal**: - Trapezoidal have only one opposite side parallel to each other.

**Significance of NCERT class 9 math Chapter 8 notes**

Quadrilaterals class 9th notes will help students to understand the formulas, statements, and rules in detail.

This NCERT class 9 math Chapter 8 notes also contains previous year’s questions and NCERT textbook pdf.

These topics can also be downloaded from Class 9 math Chapter 8 notes pdf download.

**NCERT solutions of class 9 subject wise**

**NCERT Class 9 Exemplar Solutions for Other Subjects:**

**NCERT Class 9 Notes Chapter wise**

NCERT Class 9th Maths Chapter 8 Notes |

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