Question

An angle is 20º more than three times the given angle. If the two angles are supplementary, the angles are A) 20º, 160º (B) 40º, 140º (C) 60º, 120º (D) 50º, 130º

Answer 1

Answer:

So option B is correct

40° ,140°

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Answer 2

Answer:

here's your answer

let an angle=x

=another angle= 3x+20

=according to question

=x+3x+20=180(because sum of supplementary angles is 180 degree)

=4x+20=180

=4x=180-20

=4x=160

=x=160/4

=x=40

other angle=3x+20

=3(40) +20

=120+20

=140

(40, 140) is the answer

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