# Math Surveying

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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)

• Math Surveying -

mjkkk

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