Question

If the total surface area of a cube is 302.46 in2, which best describes the length of the side of the cube?

Answer 1

The surface area of a cube is calculated using the following formula

`S=6a^2`

If the surface area is given then the side length can be found and vice versa.

We have thus

`302.46=6a^2 \\ 302.46/6=a^2 \\ a=√(302.46/6)\approx5.8\mathrm{in}`

Hope this helps.