Question

value
7. Two supplementary angles
are in the ratio of 2:7, find the angles.​

Answer 1

Answer:

let the angles be 2x and 7x

then 2x+7x=180

9x=180

x=180/9

x=20

2x=2×20=40

7x=7×20=140

Answer 2

Answer:

The angles are 40° and 140° respectively.

Step-by-step explanation:

Let the angles be = 2x and 7x

Since they are supplementary angles, the sum of the angles should be = 180°

Value of x = 20

2x + 7x = 180

9x = 180

x = 180/9 = 20

First angle = 2x = 2 × 20 = 40°

Second angle = 7x = 7 × 20 = 140°

∴ The angles are 40° and 140° respectively.