Loren plans to make several open-topped boxes from rectangular sheets of cardboard.He cuts 6-inch squares from each corner of the cardboard sheet before folding up the sides to make a box.The length of the original cardboard piece is 12 inches more than the width.The volume of a finished box is 1728 cubic inches. a.What are the dimensions of the original piece of cardboard? (Hint: draw and label a sketch!) b.What is the surface area of the finished box?