Question

The measure of angle 3 is 42°.

What is the measure of angle 1 in degrees?

Answer 1

Angle 1 is 48°

Explanation:

So angle 1 + angle 2 + angle 3 = 180°

Angle 2 = 90°

Angle 3 = 42°

180 - 90 - 42 = 48°