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Updated from **new NCERT Books** - 2023-24

Get solutions of all NCERT Questions, Exercises and Theorems of Chapter 8 Class 9 Quadrilateral free at teachoo. Answers to all questions have been solved in an easy way, with video of each and every question.

In this chapter, we will learn -

- What is a
**Quadrilateral** **Angle sum property**of a quadrilateral- Different
**Types of Quadrilateral**- Trapezium, Kite, Parallelogram, Rhombus, Rectangle, Square **Properties of Parallelogram****Diagonal**s of a parallelogram divides it into**two congruent triangles**- with Proof (Theorem 8.1)**Opposite sides**are equal in a parallelogram, and its converse - with Proof (Theorem 8.2 and Theorem 8.3)**Opposite angles**are equal in a parallelogram, and its converse - with Proof (Theorem 8.4 and Theorem 8.5)**Diagonals**of a parallelogram**bisect each othe**r, and its converse - with Proof (Theorem 8.6 and Theorem 8.7)

- A
**special condition to prove parallelogram**- A quadrilateral is a parallelogram if a pair of opposite sides is equal and parallel (Theorem 8.8) **Mid-point Theorem**, and its converse - with Proof (Theorem 8.9 and Theorem 8.10)

Here, the chapter is divided into 2 parts - Concept Wise, and Serial Order Wise.

In Serial Order Wise, just like the NCERT Book - you can check exercises and examples. This is useful when you want to check a particular question.

In Concept Wise, Teachoo (टीचू) has divided the chapter into different concepts. First the concept is explained, and then the questions of that concept is done - from easy to difficult.

Click on a click below to get started

What's in it?

Updated from **new NCERT Books** - 2023-24

Get solutions of all NCERT Questions, Exercises and Theorems of Chapter 8 Class 9 Quadrilateral free at teachoo. Answers to all questions have been solved in an easy way, with video of each and every question.

In this chapter, we will learn -

- What is a
**Quadrilateral** **Angle sum property**of a quadrilateral- Different
**Types of Quadrilateral**- Trapezium, Kite, Parallelogram, Rhombus, Rectangle, Square **Properties of Parallelogram****Diagonal**s of a parallelogram divides it into**two congruent triangles**- with Proof (Theorem 8.1)**Opposite sides**are equal in a parallelogram, and its converse - with Proof (Theorem 8.2 and Theorem 8.3)**Opposite angles**are equal in a parallelogram, and its converse - with Proof (Theorem 8.4 and Theorem 8.5)**Diagonals**of a parallelogram**bisect each othe**r, and its converse - with Proof (Theorem 8.6 and Theorem 8.7)

- A
**special condition to prove parallelogram**- A quadrilateral is a parallelogram if a pair of opposite sides is equal and parallel (Theorem 8.8) **Mid-point Theorem**, and its converse - with Proof (Theorem 8.9 and Theorem 8.10)

Here, the chapter is divided into 2 parts - Concept Wise, and Serial Order Wise.

In Serial Order Wise, just like the NCERT Book - you can check exercises and examples. This is useful when you want to check a particular question.

In Concept Wise, Teachoo (टीचू) has divided the chapter into different concepts. First the concept is explained, and then the questions of that concept is done - from easy to difficult.

Click on a click below to get started