Angles a and b are supplementary angles, which means that they add up to 180 degrees. If m∠b = 43°, then m∠a = 180° - 43° = 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
43°
43 degrees
137°
137 degrees
47°
47 degrees
223°
223 degrees
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