A three-dimensional figure with six rectangular faces is called a rectangular prism or a cuboid. This geometric shape has length, width, and height, with each of its faces being rectangular. Rectangular prisms can vary in size and proportions, which allows them to represent various real-world objects, such as boxes and bricks. The properties of a rectangular prism include having opposite faces that are congruent and parallel. The volume of a rectangular prism can be calculated by multiplying its length, width, and height, while the surface area can be found by summing the area of all its rectangular faces.