NCERT Class 7 Mathematics Solutions: Chapter 5 – Linear and Angles Exercise 5.1 Part 5 (For CBSE, ICSE, IAS, NET, NRA 2022)

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Understanding Linear Pair

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

Give the Adjacent Angle

Answer:

are not adjacent angles because their vertex is not common.

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

Given Figure Indicate Angle
Angles, Y, Z, 25 Degree and 40 Degree Are Given

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,