Solution
The formula
Surface Area of Rectangular Prism:
S = 2(lw + lh + wh)
Given
[tex]\begin{gathered} l=9.5ft \\ w=17.5ft \\ h=1.5ft \end{gathered}[/tex]
Substitute the given into the formula
[tex]S=2(9.5\times17.5+9.5\times1.5+17.5\times1.5)[/tex]
Simplify
[tex]\begin{gathered} S=2(166.25+14.25+26.25) \\ S=2(206.75) \\ S=413.5ft^2 \end{gathered}[/tex]
The final answer
Option C
