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Math Help - Angles, chords and arcs

  1. #1
    Member Mr Rayon's Avatar
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    Smile Angles, chords and arcs

    Does anyone know of any good sites where I can learn about chords, arcs and angles? I am interested in all or at least most of the rules followed when applying these, anyone know where I can find out?

    EDIT: I think I will be having an exam in two weeks that will have questions involving these, so if anyone wants to help just any info, big or small will be helpful whether or not I am aware of them. Or if anyone knows, could they please state the rules used in your reply and I will try to make sense of them as soon as I can.
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  2. #2
    MHF Contributor Mathstud28's Avatar
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    Quote Originally Posted by Mr Rayon View Post
    Does anyone know of any good sites where I can learn about chords, arcs and angles? I am interested in all or at least most of the rules followed when applying these, anyone know where I can find out?

    EDIT: I think I will be having an exam in two weeks that will have questions involving these, so if anyone wants to help just any info, big or small will be helpful whether or not I am aware of them. Or if anyone knows, could they please state the rules used in your reply and I will try to make sense of them as soon as I can.
    Plane Geometry -- from Wolfram MathWorld


    Try there...uhm

    Hmm...some infor would be

    A_{sector}=\frac{1}{2}r^2 \theta (where \theta is in radians)

    Are you studying things such as "What is the measure of a a tangent line and its intercepted arc" kind of thing?
    Last edited by CaptainBlack; May 16th 2008 at 08:57 PM. Reason: to correct post
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  3. #3
    Member Mr Rayon's Avatar
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    Yep, I think so.
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