After shortening the height of a cuboid by 3cm, it becomes a cube. The surface area is reduced by 60 square cm. What is the surface area of the cuboid It's going to be a process. OK, give me extra points

After shortening the height of a cuboid by 3cm, it becomes a cube. The surface area is reduced by 60 square cm. What is the surface area of the cuboid It's going to be a process. OK, give me extra points

The surface area is reduced by the area of the front, back, left and right sides of 3 cm in height. Because it can become a cube, it means that the area of the front, back, left and right sides of 3 cm in height is equal
60 divided by 4 divided by 3 = 5cm is length or width. The original height is 5 + 3 = 8cm
5x5x2 + 5x8x4 = 210 square centimeter