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

Question

Responses

223°
223 degrees

43°
43 degrees

47°
47 degrees

137°
137 degrees

Answer 1

Angles a and b are supplementary, meaning that they add up to 180 degrees. If angle b is 43 degrees, then angle a would be 180 degrees - 43 degrees = 137 degrees. So, the value of m∠a is 137°.