Question

The measurement of two interior
opposite angles of a triangle is 50 degrees and
70degrees. What will be the measure of its
exterior angle?​

Answer 1

Answer:

exterior angle is 120°degree

Answer 2

Given,

Two interior opposite angles = 50° and 70°

To find,

The measure of the exterior angle.

Solution,

We can solve this mathematical problem by using the following mathematical process. There are two methods to solve this problem.

1. Value of third interior angle = 180°-(50°+70°) = 180°-120° = 60°

Exterior angle = 180°-60° = 120°

2. Sum of two opposite interior angles = Value of the exterior angle of the third interior angle = (50°+70°) = 120°

Hence, the exterior angle will be 120°.