How to cut a rectangular cardboard of 24cm in length and 12cm in width? What is the maximum volume of the carton? Draw a diagram

How to cut a rectangular cardboard of 24cm in length and 12cm in width? What is the maximum volume of the carton? Draw a diagram

① First: I've tried, I don't believe you can try one by one! Cut four squares with sides of 2.5cm. Length: 24-2.5 times 2 = 19cm, width: 12-2.5 times 2 = 7cm, height: 2.5cm, 19 times 7 times 2.5 = 332.5 (cubic centimeter). Second: divide the rectangle into two squares with equal area. The square's side length is 12C

The perimeter of the bottom surface of a cube is 24 cm, and the surface area of a cube is______ ．

A: the surface area of a cube is 216 square centimeters. So the answer is 216 square centimeters