I. PROBLEM SOLVING

Given the following cross section notes shown

below:

$\frac{+4\mathrm{.}50}{x}\frac{+3\mathrm{.}50}{5\mathrm{.}50}\frac{+2\mathrm{.}50}{3\mathrm{.}00}\frac{+2\mathrm{.}30}{2\mathrm{.}00}\frac{+1\mathrm{.}50}{0}\frac{0}{2\mathrm{.}00}\frac{-1\mathrm{.}50}{4\mathrm{.}50}\frac{y}{9\mathrm{.}00}$

Width $($cut$)=12m$

Width $($fill$)=10$m

side slope $($cut$)=1$:$1$

side slope $($fill$)=1\mathrm{.}50$:$1$

a$)$Determine the values of x and y

b$)$Determine the area of cut

c$)$ Determine the area of fill