Question

which diagram is a net for this prism? what is the surface area of the rectangular prism square centimeters

Explanation:

Step1: Identify the formula for surface - area of a rectangular prism

The formula for the surface area of a rectangular prism with length $l$, width $w$, and height $h$ is $SA = 2(lw+lh + wh)$.

Step2: Identify the values of $l$, $w$, and $h$

From the net, assume $l = 20$ cm, $w = 10$ cm, and $h = 9$ cm.

Step3: Calculate $lw$

$lw=20\times10 = 200$ cm²

Step4: Calculate $lh$

$lh = 20\times9=180$ cm²

Step5: Calculate $wh$

$wh=10\times9 = 90$ cm²

Step6: Calculate the surface area

$SA=2(200 + 180+90)=2\times470 = 940$ cm²

Answer:

940