Three cubes with surface area of 24 square cm, 54 square cm and 294 square cm are fused into a large cube. What is the surface area of the large cube? Three cubes with surface area of 24 square centimeter, 54 square centimeter and 294 square centimeter are fused into a big cube. What is the surface area of the big cube?

Three cubes with surface area of 24 square cm, 54 square cm and 294 square cm are fused into a large cube. What is the surface area of the large cube? Three cubes with surface area of 24 square centimeter, 54 square centimeter and 294 square centimeter are fused into a big cube. What is the surface area of the big cube?

24 / 6 = 4 (square centimeter) 4 = 2 * 2 (centimeter) 2 * 2 * 2 = 8 (cubic centimeter) 54 / 6 = 9 (square centimeter) 9 = 3 * 3 (centimeter) 3 * 3 * 3 = 27 (cubic centimeter) 294 / 6 = 49 (square centimeter) 49 = 7 * 7 (centimeter) 7 * 7 = 343 (cubic centimeter) 8 + 27 + 343 = 378 (cubic centimeter)