Question

solve the problems below.
a. find the surface area of the rectangular prism below.

Explanation:

Step1: Identify prism dimensions

Length $l=15$ ft, width $w=11$ ft, height $h=5$ ft

Step2: Use surface area formula

Surface area of rectangular prism: $SA=2(lw + lh + wh)$

Step3: Substitute values into formula

$$\begin{align*} SA&=2((15\times11)+(15\times5)+(11\times5))\\ &=2(165 + 75 + 55) \end{align*}$$

Step4: Calculate sum inside parentheses

$165+75+55=295$

Step5: Compute final surface area

$SA=2\times295=530$

Answer:

$530$ square feet