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asked by nicole
  1. Fourth angle in a TRIangle?

  2. Sorry, express the measure the third angle in terms of x**

    I don't know why I typed "fourth".

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    posted by nicole
  3. x + 3x + 7x = 180
    11x = 180
    x = 16.3636

    7 * 16.3636 = about 114.545 degrees

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