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March 30, 2017

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Hey, Need some help working these 3 problems. I have the answers but I'm having problems working them. Thank you in advance.

The slope measurement between two points is 25.333 m and the slope angle is 1°50. Compute the horizontal distance.

A distance of 177.50 ft was measured along a 3% slope. Compute the horizontal
distance.

The slope distance between two points is 29.705 m and the difference in elevation between the points is 3.658 m. Compute the horizontal distance.

  • Math Surveying - ,

    horizontal distance=slopemeasurement*cosineTheta

    on the final one:

    horizontal=sqrt(slope^2 + elevation^2)

  • Surveying - ,

    Minor correction:
    horizontal=sqrt(slope^2 - elevation^2)

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