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Math Help - Circles

  1. #1
    Junior Member
    Joined
    Sep 2008
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    Circles

    Hey guys I have a few questions to ask you guys.

    I have quadrilateral that has the angle measures: 130, 92, and 70. It asks me if Ia circle can be circumscribed in there. How do I know if it can or can't?

    Now I need help with these Imageshack - asdjw.jpg
    I'm supposed to find the indicated arc or angle measure. For the first on how would I find arc AB and the second how do I find angle A?

    Thanks for your help guys.


    Also I was wondering has anyone ever done those big,bigger,biggest circle puzzle? I would like to double check my answers with anyone if possible.
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  2. #2
    Super Member
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    Jun 2009
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    In the figures, what are 101, 120 and 98? What is point C?
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  3. #3
    Junior Member
    Joined
    Sep 2008
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    I don't know what point C is it's just there, but the number 101 is the angle measure and the others are arc measures.
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