How much material do you need to make a cube with an edge of 4in

Answer 1

Student,

 

If you meant a SOLID cube, then you need enough material to fill the volume, which is

 

V = L³ = (4 in)³ = 64 in³

 

If you meant a HOLLOW cube, then you need enough material to cover the surface area, as Mark explained in his answer.  

 

Also, please refrain from uploading to the site stuff like "Tfuhknjtbtdfhguybhhhgfddtsrrcvgghbvhjfhv ghgbjhbhbyfghjbbyghghbtyggjfhv ynhbhfnngjgh".

Answer 2

Each face is 16 in²

There are six faces.

 

How much material do you need?