NCERT Solutions for Class 9 Maths Chapter 9 Areas of Parallelograms and Triangles – समांतर चतुर्भुजों और त्रिभुजों के क्षेत्रफल in PDF from free to use or download. Hindi Medium & English Medium **NCERT Solutions** for CBSE Board, Uttarakhand Board, UP Board, MP Board and all other Boards using **NCERT Books** for the evaluation in the exams.

## NCERT Solutions for Class 9 Maths Chapter 9

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### 9 Maths Areas of Parallelograms and Triangles Solutions

#### English Medium & Hindi Medium Solutions

- Class 9 Maths Chapter 9 Exercise 9.1 Solutions
- Study Online Exercise 9.1
**Download Exercise 9.1****Download प्रश्नावली 9.1**

- Class 9 Maths Chapter 9 Exercise 9.2 Solutions
- Study Online Exercise 9.2
**Download Exercise 9.2****Download प्रश्नावली 9.2**

- Class 9 Maths Chapter 9 Exercise 9.3 Solutions
- Study Online Exercise 9.3
**Download Exercise 9.3****Download प्रश्नावली 9.3**

- Class 9 Maths Chapter 9 Optional Exercise 9.4 Solutions
- Study Online Exercise 9.4
**Download Exercise 9.4****Download प्रश्नावली 9.4**

**NCERT Books for Class 9 All Subjects****NCERT Exemplar Problems Solutions****Study Material for 2018-2019 – English Medium****Study Material for 2018-2019 – Hindi Medium**

##### Important Terms related to Areas of Parallelograms and Triangles

- Area of a figure is a number associated with the part of the plane enclosed by that figure.

Two congruent figures have equal areas but the converse need not be true.

A diagonal of a parallelogram divides it into two triangles of equal areas.

Two figures are said to be on the same base and between same parallels, if they have a common base and vertices opposite to the common base of each figure lie on a line parallel to the base.

Parallelograms on the same base and between same parallels are equal in area.

A parallelogram and a rectangle on the same base and between same parallels are equal in area.

Parallelograms on the same base and having equal areas lie between the same parallels.

Triangles on the same base and between the same parallels are equal in area.

If a parallelogram and a triangle are on the same bases and between the same parallels, them area of the triangle is half the area of parallelogram.

Area of a triangle is half the product of its base and the corresponding altitude.

Triangles with equal bases and equal areas have equal corresponding altitudes.

Triangles on the same base and having equal areas lie between the same parallels.

A median of a triangle divides it into two triangles of equal areas.

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