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    Argh, hate questions like this... what are a, b, c and why here?
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    a = 60 since it is alternate angle with the 60 degree bit

    b = 110 as it is 180 - the 70 bit in the top right which is an alternate angle with the 70 on the bottom left

    c = 130 as if you draw a horizontal line across the bisect of the two lines you get the two alternate angles to give 70 + 60
 
 
 
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Updated: June 10, 2005
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