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  1. #1
    Member helloying's Avatar
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    help

    kindly expalin to me how to do the qn. thanks a lot
    Attached Thumbnails Attached Thumbnails help-img031.jpg  
    Last edited by helloying; September 6th 2009 at 12:53 AM. Reason: attached the qn
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by helloying View Post
    kindly expalin to me how to do the qn. thanks a lot
    What question??

    CB
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  3. #3
    MHF Contributor
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    Quote Originally Posted by helloying View Post
    kindly expalin to me how to do the qn. thanks a lot
    HI

    First notice that OC=18 , OB=18 , BP=14

    Let P be the most left point .

    Now , T is a tangent to the circle , so angle PTO is 90 degrees .

    sin angle TOP = 18/32

    Calculate angle TOP , then since PC is a straight line ,

    so angle TOC = pi - angle TOP
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