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Math Help - Right triangle problem

  1. #1
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    Right triangle problem

    the hypotenus is 5. And the other sides are labeled "X"

    My instructions are to find "X"

    How do I do this?
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  2. #2
    MHF Contributor harish21's Avatar
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    Quote Originally Posted by James1979 View Post
    the hypotenus is 5. And the other sides are labeled "X"

    My instructions are to find "X"

    How do I do this?

    Pythagorean theorem - Wikipedia, the free encyclopedia


    if hypotenuse(c) = 5 and the other sides are (a and b) x, then by pythagorean theorem:

    5^2 = x^{2} +x^{2}

    or,

    25 = 2x^{2}

    Can you find x now?
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  3. #3
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    Havent taken math in a long time not really.
    Last edited by James1979; April 1st 2010 at 08:51 PM.
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  4. #4
    MHF Contributor harish21's Avatar
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    Quote Originally Posted by James1979 View Post
    Havent taken math in a long time not really. do I just do quadratic?
    2x^2 = 25

    so, x^2 = \frac{25}{2}

    therefore, takeing square root on both sides, you have:

    x = \frac{5}{\sqrt 2}
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  5. #5
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    ok cool thanks man
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