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Finding length of third side of triangle? MATH!

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    Finding length of third side of triangle? MATH!

    I need to know the length of the third side of a triangle. If one side is 20ft and the shorter side is 3ft what is the lenght of the other side if the triangle is a right triangle?

    Thanks!

    #2
    By other side you mean the hypotenuse (longest side)?

    I so it's about 20.22'
    Last edited by TexMax; 07-13-2011, 05:34 PM.

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      #3
      a^2 + b^2 = c^2 if it is a right triangle.

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        #4
        20' 2 9/16"

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          #5
          A^2 + b^2 = c^2

          20^2 + 3^2 = c^2

          400 + 9 = c^2

          409 = c^2

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            #6
            A^2 + b^2 = c^2

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              #7
              Looks like it's the sqrt of 409

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                #8
                Originally posted by alphab View Post
                looks like it's the sqrt of 409
                20.22374841615668

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                  #9
                  Ugh, put a tape measure on it?

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                    #10
                    Originally posted by AlphaB View Post
                    A^2 + b^2 = c^2
                    this.
                    Same method used by snipers shooting from elevation.(according to a show i saw on Military channel last night )

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