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the three angles of a triangle are represented by 13 x/3,7x/3,5x/6.find the measure of its obtus angle.

  • geometry -

    13x/3 + 7x/3 + 5x/6 = 180

    multiply each term by 6
    26x + 14x + 5x = 1080

    solve for x, sub its value into 13x/3

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