Lesson: Surface Area of a Rectangular Prism

A rectangular piece of cardboard of length 25 cm and width 14 cm is being made into a box. A square of side length 4 cm is cut out of the cardboard at each corner. The remaining part is folded into an open box. Find the surface area of the open box.

A metallic cube with surface area 726 cm² is melted and reshaped into a cuboid with base 16 cm by 15 cm. Find the surface area of the cuboid to the nearest hundredth, if needed.

What is the difference in surface area between a cube with an edge length of 16 inches and a cube with an edge length of 5 inches?