If two angles are complementary, they add to 90.
if two angles are supplementary, they add to 180.
So, if your angle is x, then its supplement is (180-x), and its complement is (90-x).
Now you can derive the needed equation and solve it.
The measure of the supplement of an angle is three times the measure of the complement. Solve for the angle.
I just want to find the equation but I do not understand it. I know that the angle is 40 degrees. Please teach me how to find the equation
2 answers
oh, yeah. The angle is not 40°