Question

Angles A and B are supplementary. Angle A has a measure of 80°. What is the measure of angle B? The measure of angle B is °.

Answer 1

If angles are supplementary then they will equal 180 so 180-80=100 Angle B will have the angle of 100°

Answer 2

if they are supplementary they add up to 180

so 180-80=100

angle b is 100°