lines and Angles।NCERT।Class 9th।math।Exercise 6.1।

 NCERT Solutions for Class 9 Maths Chapter 6 - Lines And Angles Exercise 6.1 in hindi

NCERT Solutions for Class 9 Maths chapter-6 Lines And Angles

1. In Fig. 6.13, lines AB and CD intersect at O. If angle AOC + angle BOE =70° and angle BOD=40°, find angle BOE and reflex angle COE.

lines and Angles।NCERT।Class 9th।math।Exercise 6.1। Question 1

2. In Fig. 6.14, lines XY and MN intersect at O. If Z POY = 90° and a: b=2: 3, find c.

lines and Angles।NCERT।Class 9th।math।Exercise 6.1। Question 2

3.In figure 6.15, angle PQR= angle PRQ, then prove that angle PQS= angle PRT

lines and Angles।NCERT।Class 9th।math।Exercise 6.1। Question 3

4. In Fig.6.16, if x+y=w+z, then prove that AOB is a line

lines and Angles।NCERT।Class 9th।math।Exercise 6.1। Question 4

5. In fig. 6.17, POQ is a line.Ray OR is perpendicular to line PQ. OS is another ray lying between rays OP and OR. Prove that angle ROS =(1/2) (angle QOS- angle POS).

lines and Angles।NCERT।Class 9th।math।Exercise 6.1। Question 1

6. It is given that ∠ XYZ = 64° and XY is produced to point P. Draw a figure from the given information. If ray YQ bisects ∠ZYP, find ∠XYQ and reflex ∠QYP.

lines and Angles।NCERT।Class 9th।math।Exercise 6.1। Question 6