Problem $7.(10$ points$)$ Given a highway curve with $D=3,I=40{20}^{\text{'}},$ and PI station $=11+18\mathrm{.}00,$ the station at the Beginning of Curve $(BC)$ is occupied to stake points on the curve. Compute for the

a$.$ Distance to stake the End of Curve $($EC$)(2$ decimal places$)$

b$.$ Deflection angle to stake the End of Curve $($EC$)($degrees$-$minutes$)$