Use the relationship between supplementary angles ∠a

Question

and ∠b. What is m∠a if m∠b=121°?(1 point)
Responses

31°
31 degrees

59°
59 degrees

121°
121 degrees

301°

Answer 1

Since supplementary angles add up to 180°, if ∠b is 121°, ∠a must be 180° - 121° = 59°. Therefore, the correct answer is 59°.

Answer 2

Angles a and b are supplementary angles. What is the value of m∠a if m∠b=43°?(1 point)
Responses

223°
223 degrees

137°
137 degrees

43°
43 degrees

47°

Answer 3

Since supplementary angles add up to 180°, if ∠b is 43°, ∠a must be 180° - 43° = 137°. Therefore, the correct answer is 137°.