Question

find the surface area of the prism using the net. what is the total surface area? front and back rectangles: 8 cm² side rectangles: 12 cm² top and bottom rectangles: 48 cm² surface area: ? cm²

Explanation:

Step1: Recall surface - area formula for prism

The surface area of a prism is the sum of the areas of all its faces.

Step2: Add the areas of all face - rectangles

We are given the areas of the front and back rectangles ($8\ cm^2$), side rectangles ($12\ cm^2$), and top and bottom rectangles ($48\ cm^2$). The surface area $S=8 + 12+48$.
$S = 68\ cm^2$

Answer:

$68\ cm^2$