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8 April, 05:14

If ∠A and ∠B are supplementary angles and ∠A

is three times as large as ∠B, find the measures

of ∠A and ∠B.

+4
Answers (1)
  1. 8 April, 08:54
    0
    Angle A = 135 degrees and Angle B = 45 degrees

    Step-by-step explanation:

    Supplementary means two angles added together to make 180.

    Angle A = 3x and Angle B = x

    So 3x + x = 180

    4x=180 divide both sides by 4

    x = 45

    So Angle A = 3 times 45 = 135 degrees

    Angle B = the value of x which is 45 degrees
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