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22 May, 15:51

A triangle has the 3 angles marked as A = 2x - 6, B = x + 10,

C = 2x + 1.

What is x?

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Answers (1)
  1. 22 May, 19:31
    0
    Olá!

    (2x - 6) + (x + 10) + (2x + 1) = 180

    2x - 6 + x + 10 + 2x + 1 = 180

    2x + x + 2x = 180 + 6 - 10 - 1

    5x = 175

    x = 35
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