Question

Do it to be the smartest (image attach)

Answer 1

20 degrees

Explanation:

Straight Angle: 180 degrees

You know that there is a right angle which is 90 degrees. You can subtract 180 by 90 to get 90. Then you are given an angle measurement of 70 degrees. Subtract 70 from 90 to get 20.

20 is the measure of the missing angle

Answer 2

Answer: a = 20°

Explanation:

We know that a straight line is equal to 180 degrees and that the little box represents 90 degrees. We will write an equation to solve.

a = 180° - 90° - 70°

a = 20°