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Math Help - Triangles

  1. #1
    Senior Member
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    Jul 2008
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    347

    Question Triangles



    In the diagram angle DAF = 10 degrees, angle FAB = 60 degrees, angle FBA = 30 degrees and EBF = 40 degrees. Find the value of a to the nearest degree.

    I've found out a number of other angles - angle BEA = 50 degrees, angle BCA equals 40 degrees, angle BFA equals 90 degrees, angle FDA equals 80 degrees - but I can't seem to be getting closer to finding the answer.

    Help please?
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  2. #2
    Member
    Joined
    Oct 2008
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    Now just use F, C, and Z patter to determine A
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