If R is the radius of a main circular curve, `Delta` is the angle of deflection and `alpha` is the polar deflection angle of any point, its radial distance is Options: A . &nbsp3 R sin `Delta//3 sin 2alpha` B . &nbsp`3 R sin Delta//2 sin 3 alpha` C . &nbsp` 3 R sin Delta//3 sin alpha//2` D . &nbsp` 3 R sin 2Delta sin alpha`

If R

Question

If R is
the radius of a main circular curve, `Delta` is the angle of deflection and `alpha`
is the polar deflection angle of any point, its radial distance is

Options:

A . 3 R sin `Delta//3 sin 2alpha`

B . `3 R sin Delta//2 sin 3 alpha`

C . ` 3 R sin Delta//3 sin alpha//2`

D . ` 3 R sin 2Delta sin alpha`

Answer: Option A

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