For the alignment shown below, the distance between the Pl$\text{'}$s is $545\mathrm{.}158m$ :

a$)$ Determine the maximum radius $R($to the nearest $10m)$ so that there are at least $200m$ of tangent

between the two curve systems.

b$)$ Determine the PI$,$ S$.$T$.,$ and CPI stations as shown below. $(3$ decimal places$)$

g$=2,$h$=1,$i$=2$