find the surface area of the prism.

Explanation:

Step1: Identify the formula

The surface - area formula for a rectangular prism is $SA = 2(lw+lh + wh)$, where $l$ is the length, $w$ is the width, and $h$ is the height. Here, $l = 16$ m, $w = 6$ m, and $h = 3$ m.

Step2: Calculate $lw$

$lw=16\times6 = 96$ m²

Step3: Calculate $lh$

$lh = 16\times3=48$ m²

Step4: Calculate $wh$

$wh=6\times3 = 18$ m²

Step5: Calculate the sum inside the parentheses

$lw+lh + wh=96 + 48+18=162$ m²

Step6: Multiply by 2

$SA = 2\times162=324$ m²

Answer:

324 m²