Question

(a) An angle measures 65°. What is the measure of its supplement?

(b) An angle measures 51°. What is the measure of its complement?

Answer 1

A) 115°

B) 39°

Explanation:

A) suplementary angles are angles that add up to 180°

so to get your answer to A you would have to substract 65 from 180

(180° - 65° = 115°)

B) complementary angles are angles that add up to 90°

so to get your answer to B you would have to subtract 51 from 90

(90° - 51° = 39°)

Answer 2

a)
Answer

180 - 65 = supplementary angle.

115 = supplementary angle.

To check, add the angles together. 65 + 115 = 180 (check)

b) Complementary angles adds to 90⁰. Therefore, complementary angle of 51 is
90-51=39