A slope measurement of 814.20 ft is recorded and an angle measured with a hand level is 6°30'. What is the horizontal distance H for this slope distance?
A)807.70 ft
B)807.90 ft
C)808.96 ft
D)820.5 ft

Question

Quizplus · Accepted Answer

The horizontal distance H for a slope measurement of 814.20 ft and angle of 6°30' is 808.96 ft.
Solution
Use the horizontal distance formula H = L cos a
Where L = 814.20 ft
A = 6°30'
Step 1
Convert angle 6°30' to DMS: 6°30' = 6.5°
Step 2
H = L cos 6.5 = (814.20 ft)(0.994) = 808.96 ft

A Slope Measurement of 814