# NCERT Class 7 Mathematics Solutions: Chapter 5 –Linear and Angles Exercise 5.1 Part 5

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1. In the following figure, is adjacent to? Give reasons.

Answer:

are not adjacent angles because their vertex is not common.

2. Find the value of the angles in each of the following:

Answer:

(i) Since are vertically opposite angles,

(Linear pair)

(Vertically opposite angles)

So,

(ii) (Vertically opposite angles)

(Linear pair)

Now,

(Angles on a straight line)

So,