The surface area of a cube consists of six identical squares, so the surface area of a cube is the area of a face multiplied by six;

The volume of a cube is the bottom area multiplied by the height. Because of the side lengths of the horizontal, vertical and hypotenuse sides of the cube, the volume is the side length multiplied by the side length, and the bottom area multiplied by the side length.

A cuboid has long sides and short sides, and each side is a rectangle, or it may be composed of a four-sided rectangle and two rectangles. Two opposite faces are parallel and equal, and it has three groups of such opposite faces, so the surface area of a rectangle is (length times width+length times height+width times height) times 2;

The cuboid volume is the base area multiplied by the height, the base area is a rectangle, and the base area is the length multiplied by the width and then multiplied by the height.