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Math Help - Finding Chords secants and tangents...

  1. #1
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    Smile Finding Chords secants and tangents...

    Can someone help me?

    A circle can be drawn through points x, y, and z. What is the radius of the circle if you know YW=6. XW=8. And WZ=12...

    Also with that....how far is the center of the circle from the point W?

    Thanks
    Last edited by zachcumer; February 8th 2008 at 05:27 PM.
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  2. #2
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    Quote Originally Posted by zachcumer View Post
    Can someone help me?

    A circle can be drawn through points x, y, and z. What is the radius of the circle if you know YW=6. XW=8. And WZ=12...

    Also with that....how far is the center of the circle from the point W?
    I need some additional information: Where is point W? Outside the circle, on the circle line, inside the circle?
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  3. #3
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    look at number 24..thats where I got my question..

    thanks
    Attached Thumbnails Attached Thumbnails Finding Chords secants and tangents...-scan_829105212_1.jpg  
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  4. #4
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    does that help anyone?
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  5. #5
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    anyone?
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  6. #6
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    Quote Originally Posted by zachcumer View Post
    look at number 24..thats where I got my question..

    thanks
    Your question was answered here: http://www.mathhelpforum.com/math-he...538-post1.html

    EDIT: Sorry, this is the correct link: http://www.mathhelpforum.com/math-he...703-post2.html
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  7. #7
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    what about the second part of the question...
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  8. #8
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    Quote Originally Posted by zachcumer View Post
    what about the second part of the question...
    You have my sketch. Draw a third right triangle with WC (C stands for center of the circle) as the hypotenuse. You already know the legs of the right triangle. Calculate the length of the hypotenuse.


    For confirmation only: |\overline{WC}| = \sqrt{29}
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  9. #9
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    so thats how far W is from the center?

    the square root of 29?
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  11. #11
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    Quote Originally Posted by zachcumer View Post
    hello?
    Hi,

    have a look here: http://www.mathhelpforum.com/math-he...562-post8.html
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