B. 59 degrees
Vertical angles are equal, so if m4 is 31 degrees, then m2 is also 31 degrees. And since there are 180 degrees in a straight line (two adjacent angles), if m4 is 31 degrees, m1 is 180 - 31 = 149 degrees. Therefore, m2 is also 149 degrees, which aligns with option B.
If m 4 = 31 degrees, what is m 2?
A. 90 degrees
B. 59 degrees
C. 180 degrees
D. 31 degrees
1 answer