Two angles, 1 and 2, in a diagram are supplementary. If m 1 = 77° , what equation can you write to solve for m 2? Let m 2 = x°
A. x° + 77° = 180°
B. x° = 77°
C. x + 77° = 90°
D. x° = 90° - 77°
The correct equation to solve for m2 is:
A. x° + 77° = 180°