Question

1. 14 yd 17 yd 4 yd surface area =

Explanation:

Step1: Recall surface - area 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, $l = 17$ yd, $w = 4$ yd, and $h = 14$ yd.

Step2: Calculate $lw$

$lw=17\times4 = 68$ square - yards.

Step3: Calculate $lh$

$lh = 17\times14=238$ square - yards.

Step4: Calculate $wh$

$wh = 4\times14 = 56$ square - yards.

Step5: Calculate sum inside parentheses

$lw+lh+wh=68 + 238+56=362$ square - yards.

Step6: Multiply by 2

$SA = 2\times362=724$ square - yards.

Answer:

$724$ square yards