Question

what is the surface area of this rectangular prism? 16.3 mm 17 mm 13 mm square millimeters

Explanation:

Step1: Recall surface - area formula

The surface - area formula of a rectangular prism is $SA = 2(lw+lh + wh)$, where $l$ is the length, $w$ is the width, and $h$ is the height. Here, $l = 17$ mm, $w = 13$ mm, and $h = 16.3$ mm.

Step2: Calculate $lw$

$lw=17\times13 = 221$

Step3: Calculate $lh$

$lh=17\times16.3 = 277.1$

Step4: Calculate $wh$

$wh=13\times16.3 = 211.9$

Step5: Calculate sum inside parentheses

$lw + lh+wh=221 + 277.1+211.9=710$

Step6: Calculate surface area

$SA = 2\times710=1420$

Answer:

1420