A rectangular prism's formula is given as length (l) multiplied by the width (w) and height (h), or with the formula V = l * w * h. A rectangular prism is a three-dimensional figure that has six rectangular faces, and all the angles are right angles.
A rectangular prism has 12 edges and eight vertices. In this rectangular and solid shape, the opposite faces have equal measurements and also are parallel. Square prisms and cubes are special kinds of rectangular prisms. A rectangular prism is also known as a cuboid, and it is box-shaped.
Another useful formula for a rectangular prism is its surface area. The formula is that the surface area (SA) = 2(w * h) + (l * w) + (l * h).