If S is the length of a subchord and R is the radius of simple curve, the angle of deflection between its tangent and sub-chord, in minutes, is equal to« Back to Previous Page
A. 573 S/R
B. 573 R/S
C. 171.9 S/R
D. 1718.9 R/S
E. 1718.9 S/R.
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