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Math Help - Circumcircle of triangle

  1. #1
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    Circumcircle of triangle

    Hi everyone there.
    I've got a question I cannot solve. Can anyone of you tell me its answer ??
    In a figure, D is a point on circumcircle of triangle ABC in which AB=AC. If CD is produced to E such that BD = CE then prove that AD=AE.

    [IMG]file:///C:/Users/Ashish/AppData/Local/Temp/moz-screenshot.png[/IMG][IMG]file:///I:/Picture1.jpg[/IMG]
    Last edited by mr fantastic; March 7th 2010 at 02:15 AM. Reason: Changed post title
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  2. #2
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    Quote Originally Posted by agaurav77 View Post
    Hi everyone there.
    I've got a question I cannot solve. Can anyone of you tell me its answer ??
    In a figure, D is a point on circumcircle of triangle ABC in which AB=AC. If CD is produced to E such that BD = CE then prove that AD=AE.

    [IMG]file:///C:/Users/Ashish/AppData/Local/Temp/moz-screenshot.png[/IMG][IMG]file:///I:/Picture1.jpg[/IMG]
    Major hint: Prove that the triangles ABD, ACE are congruent.

    Also, if you want to upload a file from your computer, you need to click on "Manage attachments" under "Additional Options". Then, when you have browsed to select the file, you must click on the "upload" button.
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  3. #3
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    Thanks

    Thank you very much ....
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