2 supplementary angles r in the ratio 2:7 find the angle (method)
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sum of two supplementary angles is 180°.
let the ratio be 2x,7x.
2x+7x=180°
9x=180°
x=20°
so.the angles are 2x=2×20=40° and 7x=7×20=140°
let the ratio be 2x,7x.
2x+7x=180°
9x=180°
x=20°
so.the angles are 2x=2×20=40° and 7x=7×20=140°
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