Question

Find the surface area of a cube with sides 8 cm.

Answer 1

The surface area of a cube can be calculated by using the formula shown below:

$SA=6a^2$

Where "a" is the length of any edge of the cube.

In this case, you know that:

$a=8\operatorname{cm}$

Then, you can substitute this value into the formula:

$SA=(6)(8\operatorname{cm})^2$

Finally, evaluating, you get the following result:

$\begin{gathered} SA=(6)(64\operatorname{cm}^2) \\ SA=384\operatorname{cm}^2 \end{gathered}$

Therefore, the answer is:

$SA=384\operatorname{cm}^2$