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Math Help - Surveying calculations

  1. #1
    Junior Member
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    Surveying calculations

    Hi,
    I was wondering which would be the best way to perform the calculations on the attachment.A plot of land has been surveyed which gives the offset values from a straight boundary. Am I right in thinking drawing a sketch and then using simpsons rule,mid-ordinate or trapezoidal rule to get the area would be the way to go?

    Thanks....Mark
    Attached Thumbnails Attached Thumbnails Surveying calculations-01-02-2010-12-47-24_0064.jpg  
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  2. #2
    MHF Contributor
    Grandad's Avatar
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    Hello manich44
    Quote Originally Posted by manich44 View Post
    Hi,
    I was wondering which would be the best way to perform the calculations on the attachment.A plot of land has been surveyed which gives the offset values from a straight boundary. Am I right in thinking drawing a sketch and then using simpsons rule,mid-ordinate or trapezoidal rule to get the area would be the way to go?

    Thanks....Mark
    Yes.

    Grandad
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  3. #3
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    Hello, Mark!


    If I read that table correctly, nothing fancy is needed.

    Yes, I would make a sketch then use the area formula for trapezoids.
    Code:
                          *
                      *   |
                  *       |
              *   |       |
          *       |       |54.8
          |       |39.6   |
          |19.4   |       |
          |       |       |
          * - - - * - - - * - - -
             25      25

    Formula: . A \:=\:\frac{h}{2}\,\left(b_1 + b_2\right)


    The first trapezoid has: . \begin{array}{ccc} h &=& 25 \\ b_1 &=& 19.4 \\ b_2 &=& 39.6 \end{array}

    . . Therefore: . A_1 \;=\;\frac{25}{2}\left(19.4 + 39.6\right) \:=\:737.5

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  4. #4
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    RE

    Thanks guys.
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