Question

two supplementary angles qre in ration 4:5 . find the angles
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Answer 1

Answer:

Let the common multiples be x

So, the angles are 4x and 5x

By Data,

4x+5x=180 (Supplementary Angles)

9x=180

x=180/9

x=20

So,4x= 4*20 =80

    5x=5*20=100.

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Answer 2

Answer:

let the angles be 4x,5x

so,4x+5x=180

9x=180

x=180÷9

x=20

so the angles are 4x=20×4=80

5x=20×5=100

hope this helps