Write the algebraic expression described.

Question

Recall that two angles are supplementary if their sum is 180 degrees. If one angle measures f degrees, express the measure of its supplement in terms of degrees.

Answer 1

If Angle1 + Angle2 = 180, and Angle 1 = f degrees, then

f + Angle2 = 180

Subtract f from both sides.

Angle2 = 180 - f