Reduce the height of a cuboid by 6cm, just turn it into a cube, and reduce the surface area by 48cm2. What's the surface area of this cuboid?

Reduce the height of a cuboid by 6cm, just turn it into a cube, and reduce the surface area by 48cm2. What's the surface area of this cuboid?

The width of the reduced surface (the edge length of the remaining cube) is 48 / 4 / 6 = 2 (CM). The height of the original cuboid is 6 + 2 = 8 (CM). The surface area of the cuboid is 2 × 2 × 2 + 8 × 2 × 4 = 8 + 64 = 72 (square cm). A: the surface area of the cuboid is 72 square cm