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Math Help - Show that A=(1/2)bc sin alpha..

  1. #1
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    Show that A=(1/2)bc sin alpha..

    Show that A=(1/2)bc sin alpha..

    How should this be done?
    Last edited by mr fantastic; July 24th 2011 at 06:51 PM.
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  2. #2
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    Re: Show that A=(1/2)bc sin alpha..

    Are you asking for the proof of this formula or is this in context of a bigger problem?
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  3. #3
    MHF Contributor Also sprach Zarathustra's Avatar
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    Re: Show that A=(1/2)bc sin alpha..

    Quote Originally Posted by JamesBond16 View Post
    Show that A=(1/2)bc sin alpha..

    How should this be done?
    I guess, you talking about formula of triangle area.

    Say, that b is base of your triangle.

    What can you tell about c\cdot\sin{\alpha}, what is this measures?
    Last edited by mr fantastic; July 24th 2011 at 06:51 PM.
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  4. #4
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    Re: Show that A=(1/2)bc sin alpha..

    Quote Originally Posted by Also sprach Zarathustra View Post
    I guess, you talking about formula of triangle area.


    [snip]
    If that's the real question, then the OP should either use Google or refer to his/her textbook to find the proof.

    @OP: MHF does not re-invent the wheel. That's why Google was invented.
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  5. #5
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    Re: Show that A=(1/2)bc sin alpha..

    I am looking for the proof.
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  6. #6
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    Re: Show that A=(1/2)bc sin alpha..

    Quote Originally Posted by JamesBond16 View Post
    I am looking for the proof.
    Then the advice in post #4 is pertinent.
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