If D is the distance between the parallel sidings and α is the angle of crossing, the distance between the noses of crossing measured parallel to the gathering line, is

If D is the distance between the parallel sidings and α is the angle

1.	If D is the distance between the parallel sidings and α is the angle of crossing, the distance between the noses of crossing measured parallel to the gathering line, is
A.	D tan α
B.	D cot α
C.	D sin α
D.	D cos α
Answer» C. D sin α

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