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9 September, 03:34

The angles below are supplementary. What is the value of x? A pair of supplementary angles is shown. One angle measures 3x + 40, and the other angle measures 80.

16.6

20

26.7

40

+5
Answers (1)
  1. 9 September, 03:35
    0
    Supplementary angles add up to 180 degrees and with the given information you should be able to get the equation (3x+40) + 80=180. Simply solve for X from there. X should equal 20.
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