NCERT Solutions for Class 9 Maths Chapter 6 Exercise 6.1, Exercise 6.2 and Exercise 6.3 of Lines and Angles – प्रश्नावली 6.1, प्रश्नावली 6.2 and प्रश्नावली 6.3 of रेखाएँ और कोण in Hindi Medium and English Medium for CBSE Board, MP Board, Gujrat, Board, UP Board and other board following NCERT Books in the academic session 2018-2019 onward.

## NCERT Solutions for Class 9 Maths Chapter 6

**Go Back to NCERT Solutions for Class 9 Maths Main Page**

### Class 9 Maths Chapter 6 Lines and Angles Solutions

#### Lines & Angles Solutions – Hindi Medium / English Medium

- Class 9 Maths Chapter 6 Exercise 6.1 Solutions
- Class 9 Maths Chapter 6 Exercise 6.2 Solutions
- Class 9 Maths Chapter 6 Exercise 6.3 Solutions
**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**

#### 9 Maths Chapter 6 Exercise 6.1 in English

NCERT Solutions for class 9 Maths Chapter 6 Exercise 6.1 Lines and angles in English Medium in PDF form as well as study online options are given. Click Here to see **Exercise 6.2** and **Exercise 6.3** or move to **Hindi Medium** solutions.

##### 9 Maths Chapter 6 Exercise 6.2 in English

NCERT Solutions for class 9 Maths Chapter 6 Exercise 6.2 Lines and angles free to use or download for CBSE, MP Board, UP board, Gujrat Board, Bihar and Uttarakhand board using **NCERT Books**. Click here to see **Exercise 6.1** and **Exercise 6.3** or move here for **Hindi Medium** sols.

###### 9 Maths Chapter 6 Exercise 6.3 in English

NCERT Solutions for class 9 Maths Chapter 6 Exercise 6.3 Lines and angles free to use online or download to use it offline. Click here for **Exercise 6.1** and **Exercise 6.2** or if you want solutions in Hindi go for **Hindi Medium** sols.

#### 9 Maths Chapter 6 Exercise 6.1 in Hindi

9 Maths Exercise 6.1 Lines and angles in Hindi Medium to download or use online as it is. All the contents are updated as per the Latest **CBSE Curriculum 2018-19**. Move to – **प्रश्नावली 6.2** and **प्रश्नावली 6.3** here or go for **English Medium** sols.

##### 9 Maths Chapter 6 Exercise 6.2 in Hindi

Class 9 Maths Chapter 6 Exercise 6.2 Lines and angles solutions in Hindi medium for all the board using **NCERT Books** for the session 2018-19. Click here to move to – **प्रश्नावली 6.1** and **प्रश्नावली 6.3** or for solutions in English go for **English Medium** sols.

###### 9 Maths Chapter 6 Exercise 6.3 in Hindi

9 Maths Exercise 6.3 Lines and angles solutions in Hindi Medium. All the questions of exercise is explained properly by the Maths experts. Click here to see – **प्रश्नावली 6.1** and **प्रश्नावली 6.2** or go for **English Medium** Solutions.

##### Important Terms on Lines and Angles

- Types of line lines
*Intersecting lines*: Two lines are said to be intersecting, if they intersect each other at one point.*Parallel lines*: Lines in the same plane which do not intersect when produced on either side.*Transversal lines*: It is a straight line which cuts two or more straight lines at distinct point.

- Types of angles
*Acute angle*: An angle whose measure is less than 90 but more than 0.*Obtuse angle*: An angle whose measure is more than 90 but less than 180.*Right angle*: An angle whose measure is 90.*Straight angle*: An angle whose measure is 180.*Reflex angle*: An angle whose measure is more than 180 but less than 360.*Complete angle*: An angle whose measure is 360.

- Pair of angles
*Complementary angles*: Two angles are said to be complementary, if the sum of their measure is 90.*Supplementary angles*: Two angles are said to be supplementary, if the sum of their measure is 180.*Adjacent angles*: Two angles are called adjacent angles, if they have a common vertex and common arm.*Vertically opposite angles*: Two angles are said to be a pair of vertically opposite angles, if their arms from two pairs of opposite rays.

- If a transversal intersects two parallel lines, then
- Each of the alternate interior angles is equal. (Converse is also true).
- Each pair of interior angles on the same side of the transversal is supplementary. (Converse is also true).
- Each pair of corresponding angles is equal.

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