Question

Find the value of the the missing angle in grades in each of the following figures.​

Answer 1

40°

Explanation:

Angle on a straight line = 180°

Given Angles :

60°g and 80°g

Let the unknown angle be x

`x + 60 + 80 = 180 \\ x + 140 = 180 \\ x = 180 - 140 \\ x= 40`