Angles a and b are supplementary angles, meaning that the sum of their measures is equal to 180 degrees. Since m∠b = 43°, we can solve for m∠a by subtracting 43 from 180:
m∠a = 180 - 43
m∠a = 137°
Therefore, the value of m∠a is 137°.
Angles a and b are supplementary angles. What is the value of m∠a if m∠b=43° ?(1 point)
Responses
47°
47 degrees
43°
43 degrees
137°
137 degrees
223°
223 degrees
1 answer