Step-by-step explanation:
Two angles are supplementary. If the measure of the angle is twice the measure of the other, find the measure of each angle.
Let the measure of one of the supplementary angles be a .
Measure of the other angle is 2 times a .
So, measure of the other angle is 2a .
If the sum of the measures of two angles is 180° , then the angles are supplementary.
So, a+2a=180°
Simplify.
3a=180°
Explain:
so the answer is D. 180
