Question

incorrect. the value in your answer is incorrect. find the surface area of this cube. be sure to include the correct unit in your answer. 3 cm 3 cm 3 cm 36 cm²

Explanation:

Step1: Recall surface - area formula

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

Step2: Identify side - length

The side - length of the given cube $a = 3$ cm.

Step3: Calculate surface area

Substitute $a = 3$ into the formula: $S=6\times3^{2}=6\times9 = 54$ $cm^{2}$.

Answer:

$54$ $cm^{2}$