Marjorie says angles m and n are complementary because they add up to 180°. Is Marjorie's statement true or false?

Marjorie's work:

∠m = 140°

∠n = 40°

140° + 40° = 180°

(1 point)
Responses

True
True

False

1 answer

Marjorie's statement is false.

Complementary angles are defined as two angles that add up to 90°, not 180°. Since she claims that angles m and n are complementary because they add up to 180°, that part of her statement is incorrect.

The correct term for angles that add up to 180° is "supplementary angles."