Question

The exterior angle of a triangle is 120° and one of its interior opposite angle is 70° . Find the measure of its other interior opposite angle? *​

Answer 1

Step-by-step explanation:

Exterior angle = 120°

One interior opposite angle = 70°

Let the other interior opposite angle be x.

Sum of interior opposite angles = Exterior angle

70° + x = 120°

x = 120° - 70°

x = 50°

Other interior opposite angle = 50°