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Math Help - geometry

  1. #1
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    geometry

    in a triangle ABC,the angle at A is 3 times the angle at B and half of the angle at C. find all the angles and verify tht their sum is 180 degree.
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  2. #2
    Eater of Worlds
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    Solve for A:

    A+\underbrace{\frac{A}{3}}_{\text{B}}+\underbrace{  2A}_{\text{C}}=180
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