Question

Two supplementary angle are in the raito of 2:7 find the angle

Answer 1

Let the ratios be 2x and 7x

As we know that sum of supplementary angles is equal to 180°

so 2x+ 7x = 180

9x=180

x=20

so the angles are

2x= 2 x 20= 40°

7x= 7 x 20= 140°

Answer 2

Answer:

40 degrees

140 degrees

Step-by-step explanation:

let angles be 2x and 7x

then 2x+7x=180 degrees            (supplementary angles are 10 degrees)

9x=180

x=20

therefore, angle 1=20x2=40

                 angle 2=20x7=140

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