: A metalic sheet of rectangular shape with 48m*36m from each of it corner a square is cut off so as to make an open box. if length of each square length is 8m find thevol&lsa of box
v = (48-2*8)(36-2*8)(8)
lsa = 2(48-2*8)(8) + 2(36-2*8)(8)
lsa = 2(48-2*8)(8) + 2(36-2*8)(8)