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Math Help - Need urgent help in Geometry!

  1. #1
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    Need urgent help in Geometry!

    My teacher said we have to use this equation, but I'm not sure why or how to apply:
    90-m=2(180-m)

    Problem:
    Angle A is 1/2 it's complement, angle B

    Any ideas???
    Thanks for any help!
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  2. #2
    MHF Contributor
    skeeter's Avatar
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    Angle A is 1/2 it's complement, angle B

    the above statement says A + B = 90 and A = B/2

    so ...

    (B/2) + B = 90

    solve for B, then determine A.


    this equation ...

    90 - m = 2(180 - m)

    would not be applicable to the above problem.
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