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## AP Board Class 9 Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 9th Maths Chapter 4 Lines and Angles Ex 4.1 Book Answers

 AP Board Class 9 Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions PDF: Download Andhra Pradesh Board STD 9th Maths Chapter 4 Lines and Angles Ex 4.1 Book Answers

## Andhra Pradesh State Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Books Solutions

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## AP Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks Solutions with Answer PDF Download

Find below the list of all AP Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions for PDF’s for you to download and prepare for the upcoming exams:

## AP State Syllabus 9th Class Maths Solutions 4th Lesson Lines and Angles Exercise 4.1

Question 1.
In the given figure, name:

i) Any six points
Solution:
A, B, C, D, P, Q, M, N etc.

ii) Any five line segments
Solution:
AX⎯⎯⎯⎯⎯⎯⎯⎯⎯,XM⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯,MP⎯⎯⎯⎯⎯⎯⎯⎯⎯,PB⎯⎯⎯⎯⎯⎯⎯,MN⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯,PQ⎯⎯⎯⎯⎯⎯⎯⎯,AB⎯⎯⎯⎯⎯⎯⎯⎯…… etc.

iii) Any four rays
Solution:
MA⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯,PA⎯⎯⎯⎯⎯⎯⎯⎯,PB⎯⎯⎯⎯⎯⎯⎯,NC⎯⎯⎯⎯⎯⎯⎯⎯,QD⎯⎯⎯⎯⎯⎯⎯⎯⎯…… etc.

iv) Any four lines
Solution:
MA⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯,PA⎯⎯⎯⎯⎯⎯⎯⎯,PB⎯⎯⎯⎯⎯⎯⎯,NC⎯⎯⎯⎯⎯⎯⎯⎯,QD⎯⎯⎯⎯⎯⎯⎯⎯⎯……

v) Any four collinear points
Solution:
A, X, M, P and B are collinear points on the line AB⎯⎯⎯⎯⎯⎯⎯⎯.

Question 2.
Observe the following figures and identify the type of angles in them.

Solution:
∠A – reflex angle
∠B – right angle
∠C – acute angle

Question 3.
State whether the following state¬ments are true or false
i) A ray has no end point.
ii) Line AB⎯⎯⎯⎯⎯⎯⎯⎯ is the same as line BA⎯⎯⎯⎯⎯⎯⎯⎯
iii) A ray AB⎯⎯⎯⎯⎯⎯⎯⎯ is same as the ray BA⎯⎯⎯⎯⎯⎯⎯⎯
iv) A line has a definite length.
v) A plane, has length and breadth but no thickness.
vii) Two lines may intersect in two points.
viii) Two intersecting lines cannot both be parallel to the same line.
Solution:
i) A ray has no end point. – False
ii) Line AB⎯⎯⎯⎯⎯⎯⎯⎯ is the same as line BA⎯⎯⎯⎯⎯⎯⎯⎯ – True
iii) A ray AB⎯⎯⎯⎯⎯⎯⎯⎯ is same as the ray BA⎯⎯⎯⎯⎯⎯⎯⎯ – False
iv) A line has a definite length. – False
v) A plane, has length and breadth but no thickness. – True
vi) Two distinct points always determine a unique line. – True
vii) Two lines may intersect in two points. – False
viii) Two intersecting lines cannot both be parallel to the same line. – True

Question 4.
What is the angle between two hands of a clock when the lime in the clock
is
a) 9 ‘o clock
b) 6 ‘o clock
c) 7 ; 00 p.m.
Solution:

a) 12 hours = = 360°
1 hour = 360∘12 = 30°
∴Angle between hands when the time is 9 o clock = 3 x 30 = 90

b)

Angle between hands = 6 x 30° = 180°

c)

Angle between hands = 7 x 30° = 210°

## Andhra Pradesh Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks for Exam Preparations

Andhra Pradesh Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions can be of great help in your Andhra Pradesh Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 exam preparation. The AP Board STD 9th Maths Chapter 4 Lines and Angles Ex 4.1 Textbooks study material, used with the English medium textbooks, can help you complete the entire Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Books State Board syllabus with maximum efficiency.

## FAQs Regarding Andhra Pradesh Board Class 9th Maths Chapter 4 Lines and Angles Ex 4.1 Textbook Solutions

#### Can we get a Andhra Pradesh State Board Book PDF for all Classes?

Yes you can get Andhra Pradesh Board Text Book PDF for all classes using the links provided in the above article.

## Important Terms

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