Question

the complementary angles are in the ratio 2:7 find the measure of them​

Answer 1

Answer:

Let the angles be x

therefore the ratio becomes 2x:7x

so according to the question,

2x+7x=90

9x=90

x=90/9

x=10°

so the measures of the angles are

2x=2×10=20°

7x=7×10=70°

Answer 2

Answer:

Let the angles be x

so it will become 2x and 3x

we know that sum of two complementary angle is 90

therefore 2x + 7x = 90

9x = 90

x =90/9

× = 10

Now angle are 10 × 2 = 20

10× 7 = 70

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