Question

Find the lateral surface area of this rectangular prism in centimeters. Refer to your STAAR 8th Grade Math Reference Sheet for the appropriate formula.28 cm236 cm242 cm248 cm2

Answer 1

The Solution:

Given:

Required:

To find the lateral surface area of the above rectangular prism in centimeters.

Step 1:

Definition:

Step 2:

So, applying the formula, we get

`Lateral\text{ Surface Area}=2(L+W)H`

In this case,

`\begin{gathered} L=length=4 \\ W=width=2 \\ H=height=3 \end{gathered}`

Substituting these values in the formula, we get

`Lateral\text{ Surface Area}=2(4+2)3=2*6*3=36\text{ cm}^2`

Therefore, the correct answer is 36 square centimeters [option 2]