Question

2 supplementry angles are in ratio 5:7 . find measure of angles

Answer 1

let the ratio be x

5 x + 7x = 180

12x = 180

x = 15

5x = 5 × 15 = 75

7x = 7 × 15 = 105

Answer 2

Step-by-step explanation:

sum of two supplementary angles=180

5x+7x=180°

12x=180°

x=180/12

x=15

5x=75°

7x=105°

The first and second required angles are 75° and 105° respectively.