If the height of a cuboid is 30 cm and the cross section is square, if the height is increased by 5 cm, the surface area will be increased by 960 square cm, and the surface area and volume of the original cuboid will be calculated

If the height of a cuboid is 30 cm and the cross section is square, if the height is increased by 5 cm, the surface area will be increased by 960 square cm, and the surface area and volume of the original cuboid will be calculated

Side length of cross section = 960 / 5 / 4 = 48CM
Surface area = 48 * 48 * 2 + 48 * 4 * 30 = 10368 square centimeter
Volume = 48 * 48 * 30 = 69120 CC