Just factor 48 factors. It has many.
2 * 2 * 12
3 * 2 * 8
4 * 4 * 3
1 * 2 * 24
And the factors given above can have the height and the smallest of the other factors interchanged.
So 3 * 8 * 2 is not the same thing as 3 * 2 * 8 although your teacher may argue that they are the same. All you have to do is put a different face on the bottom to make the height and width different.
Other teachers would say they were different. I have given you what you requested, so I think you are done with this question.