Let the "other" angle be x. Then we can set up the equation: 2x + 60 + x = 180, because supplementary means that the angles add up to 180 degrees. We get: 3x + 60 = 180 3x = 120 x = 40. 2(40) + 60 = 80 + 60 = 140. So one angle is 140 degrees and the other angle is 40 degrees. --- Hope this helps! ==jding713==
