NCERT Class 9 Solutions: Line and Angles (Chapter 6) Exercise 6.2 – Part 2
Q3 In the figure, if , and , find and .
Solution:
Given , and

Now,

Now, (Since and GE is transversal. Alternate interior angles.)

Also, °

Now, (Linear pair)
Q4 In the figure, if PQ  ST, ∠PQR = 110° and ∠RST = 130°, find ∠QRS.
Solution:

Given,


Construction,

A line XY parallel to PQ and ST is drawn.

(Angles on the same side of transversal.)

Also, (Angles on the same side of transversal.)

Now,