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Math Help - My Geometry Problem

  1. #1
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    Aug 2011
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    Wink My Geometry Problem

    Good day everyone, i am new here and i found this site very useful. I am not a mathematician but i really want to learn math. Can anyone please give me ideas on how to prove this?

    A Circumscribable quadrilateral is inscribable if and only if its area equals the square root of the product of its four sides.

    I am really confused on how to start with the proof and the if and only if statement,.,

    thnx in advance..
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  2. #2
    Super Member
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    Trumbull Ct
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    Re: My Geometry Problem

    Hello mathlover123,



















    Hello mathlover123,
    Review posts of last month by Earboth and Opalg.These do not cover your definition but they will give insight.The quad must be tangential with the sum of opposite sides equal and also must be cyclic.A simple case is aregular trapezoid Where the sum of the parallels equals the sum of the slant sides



    bjh
    Last edited by bjhopper; August 6th 2011 at 07:19 PM. Reason: remove unwanted worda
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