Question $1$: Adapted from Problem $7\mathrm{.}5$ from the Text

Horizontal Alignment on Highway $49.$ Given a horizontal curve with radius $1400$ feet, a

deflection angle $=46^($@$)21^(\text{'})00^(\text{'}\text{'}),$ and its PI located at Sta $500+00\mathrm{.}00$ on a two$-$lane road $($one lane in

each direction$)$ with $12-$foot wide lanes, find

a$)$ Degree of Curvature; help me solve this transportation question please, and show all steps

b$)$ Station of PC;

c$)$ Length of the curve;

d$)$ Station of PT