Question

10. Find the surface area of the rectangular prism with / = 9.5 ft., w = 17.5 ft., and h = 1.5 ft.124.7ft2498.75 ft2413.5 ft257ft2

Answer 1

Solution

The formula

Surface Area of Rectangular Prism:

S = 2(lw + lh + wh)

Given

$\begin{gathered} l=9.5ft \\ w=17.5ft \\ h=1.5ft \end{gathered}$

Substitute the given into the formula

$S=2(9.5\times17.5+9.5\times1.5+17.5\times1.5)$

Simplify

$\begin{gathered} S=2(166.25+14.25+26.25) \\ S=2(206.75) \\ S=413.5ft^2 \end{gathered}$

The final answer

Option C