(1)The height of the box will be 1 ft, so the area of the base must be 4 sq ft

So if the width of the box is w ft, the length is 4/w ft, and the size of the

sheet it is floded from is w+2 by (4/w)+2 ft.

Opps, did not notice that we has a square sheet of metal, as its square w=2, and the

original sheet is as Earboth says 4'x4'

(2)Here 2(w+2)=(4/w)+2, which you should solve for w, you will have two

roots one of which will not satisfy the conditions to be a width, and the

other will, and it will be the solution.

RonL