Question

find the surface area of this cube. be sure to include the correct unit in your answer. 3 in 3 in 3 in

Explanation:

Step1: Recall surface - area formula

The surface - area formula for a cube is $SA = 6s^{2}$, where $s$ is the side - length of the cube.

Step2: Identify side - length

The side - length $s$ of the given cube is $s = 3$ in.

Step3: Calculate surface area

Substitute $s = 3$ into the formula: $SA=6\times(3)^{2}=6\times9 = 54$.

Answer:

$54\text{ in}^2$