Question

TRY THESE
Check which of the following pairs of angles form a linear pair (Fig 3.13)
1)40,140
2)60,90
3)90,80
4)65,115​

Answer 1

Answer:

1)40+140=180

and

4)65+115=180

forms a linear pair

Answer 2

A linear pair is a pair of adjacent, supplementary angles.

1. 40+ 140 = 180degree

4. 65 + 115 = 180 degree