A box with a square base and no top is to be made from a square piece of carboard by cutting 3 in. squares from each corner and folding up the sides. the box is to hold 9075 in3. how big a piece of cardboard is needed?
The volume will be L*W*H We are cutting 4 inches from each corner, so the length and width will each be x - 8. The height will be 4. 100 = 4* (x - 8)* (x - 8) 25 = (x - 8)^2 5 = x - 8 13 inches= x. The piece of cardboard needed will be 13 by 13 inches.
