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Math Help - Circle proof

  1. #1
    Member jacs's Avatar
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    Unhappy Circle proof

    No idea how to get this one out, i know it is probably simple, just can't see it...grrr
    Attached Thumbnails Attached Thumbnails Circle proof-circle-proof.jpg  
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by jacs
    No idea how to get this one out, i know it is probably simple, just can't see it...grrr
    There is something wrong here, or in my interpretation of this
    problem. \angle CGF is right, and \angle CAF cannot be right as AF
    is a cord and not a tangent to the circle with centre O. But opposite
    angles in a cyclic quad add to 2 right angles!

    RonL
    Last edited by CaptainBlack; January 21st 2006 at 07:57 AM.
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  3. #3
    Member jacs's Avatar
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    Looks like the question has been structured incorrectly then, since it is a scan straight from the actual paper. I will go in and smack my teacher (lol....only joking, will point it out very politely and then glare since i spent so much time trying to work it out....grrrr)


    thanks for your help

    jacs
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  4. #4
    Grand Panjandrum
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    Quote Originally Posted by jacs
    Looks like the question has been structured incorrectly then, since it is a scan straight from the actual paper. I will go in and smack my teacher (lol....only joking, will point it out very politely and then glare since i spent so much time trying to work it out....grrrr)


    thanks for your help

    jacs
    You should check what I wrote, to be sure you agree with its argument.
    We can all make mistakes, and so benefit from others checking our work.

    RonL
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  5. #5
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    Quote Originally Posted by CaptainBlack
    You should check what I wrote, to be sure you agree with its argument.
    We can all make mistakes, and so benefit from others checking our work.

    RonL
    Speak for yourself, I never make mistakes
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  6. #6
    Member jacs's Avatar
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    Quote Originally Posted by ThePerfectHacker
    Speak for yourself, I never make mistakes

    lol..... heee heee

    yes i went over it a number of times and your reasoning looks good to me. I have treid to prove that question over and over and jsut coudltn get it to work, least i know why now

    thanks
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