Question

two supplementary angles are in the ratio 2:7.find the angles​

Answer 1

Let the angles be 2x and 7x,

Since the angles are supplementary so,

$2x + 7x = 180$

$9x = 180$

$x = \frac{180 }{9}$

$x = 2 0$

So the angles are, 40° and 140°

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