Question

chelsea has a cube with a side length of 4 cm. what is the surface area of chelseas cube? a. 64 cm² b. 64 cm³ c. 96 cm² d. 96 cm³

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: Substitute the side - length value

Given $a = 4$ cm, substitute it into the formula: $S=6\times4^{2}$.

Step3: Calculate the result

First, calculate $4^{2}=16$, then $6\times16 = 96$ $cm^{2}$.

Answer:

C. $96$ $cm^{2}$