Question

Pls help me I don’t know how to do this :(


Find each measure.

Answer 1

69° and 31°

Explanation:

An exterior angle is equal to the sum of the opposite internal angles.

100 = (2x + 27) + (2x − 11)

100 = 4x + 16

84 = 4x

21 = x

Therefore, the angles are:

2x + 27 = 2(21) + 27 = 69

2x − 11 = 2(21) − 11 = 31