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algebra 1

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In a triangle ABC,angle b is 4 times angle "A" and angle "C" IS 17 less than 5 times angle "A". Find the size of the angles.

  • algebra 1 - ,

    let angle A = x
    then angle B = 4x
    and angle C = 5x-17

    solve:
    x + 4x + 5x - 17 = 180

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