Class 9 Ex 6.1 Q1, Q2, Q3, Q4, Q5, Q6 (Lines and Angles), Ncert Book, CBSE, Explained in Hindi

Class 9 Ex 6.1 Q1, Q2, Q3, Q4, Q5, Q6 (Lines and Angles), Ncert Book, CBSE, Explained in Hindi

Class 9 Ex 6.1 Q1, Q2, Q3, Q4, Q5, Q6 (Lines and Angles), Ncert Book, CBSE, Explained in Hindi

Class 9, Maths
Chapter-6
Lines and Angles
NCERT Book, CBSE Board

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

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


3. In Fig. 6.15, ∠ PQR = ∠ PRQ, then prove that
∠ PQS = ∠ PRT.

4. In Fig. 6.16, if x + y = w + z, then prove that AOj OS is another ray lying betwee


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
∠ ROS = 1/2 (∠ QOS – ∠ POS).

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.


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