Question

Two supplementry angles are in the ratio 2:7 , find the angles.​

Answer 1

sum of two supplementary angles = 180°

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2x+7x=180

9x=180

x=180/9

x=20

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2x=2(20)

=40

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7x=7(20)

=140

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I hope you understand ☺️

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Answer 2

Answer:

20° and 140°

Step-by-step explanation:

two supplementry angles are in ratio 2:7

we know that either of two angles whose sum is 180°. is called supplement angle so

Let two angle are 2x and 7 x

2x+7x=180°

9x=180°

x=180/9

x=20

so angle are 2×20=40 and 7×20= 140

therefore angles are 20° and 140°