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7 March, 15:05

Angles X and Y are supplementary. Angle X is 3 times the measure of angle Y. What is the measure of angle X?

45°

60°

120°

135°

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Answers (1)
  1. 7 March, 15:35
    0
    Supplementary angles = 180 degrees

    180/3 = 60

    180-60 = 120
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