Question

(a) An angle measures 48°. What is the measure of its complement? (b) An angle measures 65°. What is the measure of its supplement? measure of the complement: 5 ? measure of the supplement:

Answer 1

(1) Complementary angles always add up to 90 deg, if one angle is 48 deg then another one will be 90-48 = 42 deg

(2) Supplementary angles on the other hand always add up to 180 deg or half a circle so if one angle is 65 deg then another angle is 180-65 =115 deg

This is the answer.