Gary says angles r and d are complementary because they add up to 90°. Is Gary's statement true or false?

Question

Gary's work:

∠r = 40°

∠d = 50°

40° + 50° = 90°

(1 point)
Responses

True
True

False

Is it true of false

Answer 1

Gary's statement is true. Complementary angles are defined as two angles that add up to 90°. Since ∠r (40°) and ∠d (50°) add up to 90° (40° + 50° = 90°), they are indeed complementary.