As shown in the figure, the surface area of a cuboid with a length of 15 cm, a width of 10 cm and a height of 5 cm is increased by () square cm after it is divided into three small cuboids A. 50B. 100C. 200D. 750

As shown in the figure, the surface area of a cuboid with a length of 15 cm, a width of 10 cm and a height of 5 cm is increased by () square cm after it is divided into three small cuboids A. 50B. 100C. 200D. 750

Surface area increased: 10 × 5 × 4 = 200 (square centimeter); answer: surface area increased by 200 square centimeter