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

*for CBSE Board, MP Board, Gujrat, Board, UP Board and other board following*

**English Medium****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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