Question

Two angles are such that one angle is ⅘ of its supplement. Find the measure of angles. ​

Answer 1

Answer:

Let one of the supplementary angles be x. Other supplementary angle = (180 - x) x = 4/5(180 - x) 5x = 720 - 4x 5x + 4x = 720 9x = 720 x = 720/9 x = 80° Another supplementary angle = 180 - 80 = 100° So, the supplementary angle are 80° and 100°.