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Thread: Circle Problem

  1. March 21st 2012, 06:13 PM #1
    SmokeDawg
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    Circle Problem

    Any help would be much appreciated. Please see attached file.

    Attached Thumbnails Attached Thumbnails Circle Problem-proof.jpg  
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  2. March 21st 2012, 06:33 PM #2
    emakarov
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    Re: Circle Problem

    Angle ACB = 90 by Thales' theorem and angle BAP = 90 because AP is a tangent.
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