Question

two supplementary angles are in ratio2:7 .find them

Answer 1

this is the answer...............

Answer 2

Let the Ratio be in x

thus the sum of supplementary angles is 180

so 2x + 7x = 180

9x = 180

x = 180/9

x = 20

thus 1st angle = 2x = 2(20) = 40
and 2nd angle = 7x = 7(20) = 140

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