Step-by-step explanation:
Two angles are supplementary if the sum of their measures is 180.
Two angles are complementary if the sum of their measures is 90.
You can write "the measure of angle 1" as m∠1.
Finding an Angle Measure
∠1 and ∠2 are complementary, and m∠2 = 32. Find m∠1.
Solution
m∠1 + 32 = 90 Substitute 32 for m∠2.
m∠1 = 58 Subtract 32 from each side.
m∠1 + m∠ 2 = 90 Definition of complementary angles
