Question

what is the surface area of a square prism with sides that measure 8 units? 254 units² 300 units² 314 units² 384 units²

Explanation:

Step1: Recall surface - area formula

The surface - area formula for a square prism (a cube in this case since all sides are equal) is $SA = 6s^{2}$, where $s$ is the side length.

Step2: Substitute side length

Given $s = 8$ units, we substitute into the formula: $SA=6\times8^{2}$.
First, calculate $8^{2}=64$.
Then, $6\times64 = 384$.

Answer:

384 units²