Question

Find the surface area of the prism or regular pyramid.

Answer 1

Hint: Use the formula of the surface area of the prism.

Step :Find the surface area of the prism or regular pyramid.

The given figure is a prism with a length of $8in$, width of $3in$, and a height of $5in$.

Substitute $l=8,w=3andh=5$ into the formula for the surface of a prism:

$$\begin{gathered} S=2\left(8\right)\left(3\right)+2\left(3\right)\left(5\right)+2\left(5\right)\left(8\right) \\ S=48+30+80 \\ S=158 \end{gathered}$$

Hence,the surface area of the given prism is $158i{n}^2$.