Question

Two supplementary angles are in the ratio 4:5 find the angles​

Answer 1

Answer:

Let one angle be 4x and other angle be 5x.

As we know that sum of two supplementary angle is 180,

therefore, 4x + 5x = 180

or, 9x = 180

or, x = 180/9

or, x = 20

So, the first angle= 4x = (4×20)° = 80°, and the second angle= 5x = (5×20)° = 100°.

Answer 2

Answer:

4x+5x=180

9x=180

x=180/9

x=20

4x=4*20=80

5x=5*20=100

hope it will help u!!