Question

If two supplementry angles are in the ratio 1:2, then find the measure of the greater angle.​

Answer 1

120

Explanation:

Sum of Supplementary angles = 180

Ratio = 1 : 2

Angles = x , 2x

x +2x = 180

3x = 180

x = 180/3

x = 60

Greater angle = 2x = 2 *60 = 120