Question

Using this figure, identify the value of x and the measurement of the exterior angle.

x =

The measurement of the exterior angle is degrees.

Answer 1

x = 57

The measurement of the exterior angle is 140°

Explanation:

This is a right triangle

The sum of two interior angles in a triangle is equal to an exterior

angle that's supplementary to the third interior angle

90 + 50 = 2x-10

140 = 2x-10 add 10 to both sides

150 = 2x divide both sides by 2

75 = x