Question

The measure of angle a is 40° wrote an equation that will help you determine the measure of angle b

Answer 1

90 (degrees) - a = b

90 (degrees) - (40) = 50 (degrees)

Explanation:

The little box in the corner indicates that it is a right angle, all right angles are equal to 90 degrees.

They gave you the value of (a) and we know that (b) must be equal to 90 degrees when added to (a).

Subtract 90 from 40 and that gives you fifty degrees.

Answer 2

50 degrees

Explanation:

You know it's a right angle, so that means it is 90 degrees, just subtract 40 degrees from 90 since you know a = 40 and a+b=90