Degree of a railway curve is defined as number of degrees subtended at the centre of a curve by an arc of

Degree of a railway curve is defined as number of degrees subtended at

1.	Degree of a railway curve is defined as number of degrees subtended at the centre of a curve by an arc of
A.	10 m
B.	15 m
C.	20 m
D.	30.5 m
Answer» E.