Question

The ratio of the measure of two supplementary angles is 3:7. Find the measure of each angle.

Answer 1

let the first angle be 3x and second angle be 7x

now their sum must be equal to 180

so 3x+7x=180

10x=180

x=18

now first angle is 3x so 3 x 18=54

and 7 x 18 =126

Answer 2

let the first angle be 3x and second angle be 7x now their sum must be equal to 180
so 3x+7x=180

10x=180

x=18

now first angle is 3x so 3 x 18=54

and second angle is 7x so 7 x 18 =126 hence found