Question

question tristan wraps a gift box in the shape of a right rectangular prism. the figure below shows a net for the gift box. how much wrapping paper did he use, in square feet? answer a = ft²

Explanation:

Step1: Identify the dimensions

Length $l = 8$ ft, width $w=7$ ft, height $h = 6$ ft.

Step2: Recall surface - area formula

The surface - area formula of a rectangular prism is $SA=2(lw + lh+wh)$.

Step3: Calculate $lw$

$lw=8\times7 = 56$

Step4: Calculate $lh$

$lh=8\times6 = 48$

Step5: Calculate $wh$

$wh=7\times6 = 42$

Step6: Calculate sum inside parentheses

$lw + lh+wh=56 + 48+42=146$

Step7: Calculate surface area

$SA = 2\times146=292$ square feet.

Answer:

$292$