Correct Answer - Option 3 : 3.82°
Concept:
Formulas:
Degree of the curve for 20 m Curve:
\(R = \frac{{1146}}{D}\)
Degree of the curve for 30 m Curve:
\({\rm{D}} = \frac{{1720}}{{\rm{R}}}{\rm{\;degree}}\),
Where,
D = Degree of the curve (degrees) and R = radius of the curve (m)
Calculation:
Given: Radius of the curve = 300 m
Degree of the curve,
\({\rm{D}} = \frac{{1146}}{{\rm{R}}} = \frac{{1146}}{{300}} = 3.82^\circ \)