Question

A cube has a volume of 64 cubic inches. What is its surface area?

Answer 1

See below

`SA=96` sq in.

Explanation:

`V=s^3`
`64=s^3`
find the cubic root of each side
`root(3)64=s`
`4=s" "`so the side of the cube is 4 cu in.

The surface area of a cube is `" "SA=nA`
where `SA` is surface area, `n` is the number of faces, and `A` is the area of one face.

Te area of one face (`A`) is `s^2" "` so `A=16`
`n=6`

`SA=6*16=96`