Find the supplementary angles in which one angle is 40° more than the other angle

let one angle be x and other be x +40,

now, x+(x+40)=180 (supplementary angle is 180°) or, 2x=180 _40

or, x = 140/2

therefore; the value of x is 70° and as other angle is 40°more than this angle. so, another angle is 110°.

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