MATH PROBLEMS
Part 5: Problems 24.29 and 24.30
PROBLEM 24.29 Find the grade slopes between the water
main manholes.
MH-1 IE 5 124.63 STA. 0 1 67.02
MH-2 IE 5 137.44 STA. 2 1 78.14
MH-3 IE 5 145.67 STA. 4 1 50.07
MH-4 IE 5 159.12 STA. 6 1 82.58
MH-5 IE 5 174.88 STA. 9 1 43.32
PROBLEM 24.30 Using the Law of Cosines, find the degree
of curve (D) to the nearest second of the following curves:
R 5 1,224.909, D 5 158349
R 5 335.009, D 5 278569
R 5 75.459, D 5 248269
R 5 602.259, D 5 358009
59728_ch24_EOC_ptg01.indd 15 03/02/16 10:38 am