Question

the ratio of 2 supplementary angles is 4:5. find these angles and the ratio of supplementary angles
[detailed answer for brainliest]

Answer 1

Answer:

Hello....

The supplementary angles are that the sum of two angles must be 180°..

Let the two angles be 4x and 5x

So,

5x + 4x = 180 °

9x = 180°

X = 180 / 9

x = 20 °..

So the first angle is 4x = 4* 20 = 80°

The second angle is 5x = 5* 20 = 100°

Step-by-step explanation:

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Answer 2

Answer:

Step-by-step explanation:

let the angles be 4x and 5x respectively

4x+5x=180{sum supplementary angles is 180}

9x=180

x=20

so 4x=80

5x=100