Question

Two angles, 1 and 2, in a diagram are supplementary. If mL1 = 77° , what equation can you write to solve for m2? Let m2=x

Answer 1

The equation that can be written to solve for m2 is:

m1 + m2 = 180°

Substituting m1 = 77° and m2 = x into the equation:

77° + x = 180°