Question

lesson 15 homework find the surface area of each re 1. 9 in 13 in 3 in 4.

Explanation:

Step1: Recall surface - area formula for rectangular prism

The formula for the surface area $S$ of a rectangular prism is $S = 2(lw+lh + wh)$, where $l$ is the length, $w$ is the width, and $h$ is the height. Here, $l = 13$ in, $w = 9$ in, and $h = 3$ in.

Step2: Calculate $lw$

$lw=13\times9 = 117$ square - inches.

Step3: Calculate $lh$

$lh=13\times3 = 39$ square - inches.

Step4: Calculate $wh$

$wh=9\times3 = 27$ square - inches.

Step5: Substitute into the formula

$S = 2(117 + 39+27)$
$S = 2\times183$
$S = 366$ square - inches.

Answer:

366 square inches