All rectangular prisms consist of eight vertices that are connected by 12 edges ending at right angles. However, there are some differences between these types of three-dimensional shapes.

The surface area of the prism is made up of two trapezium-shaped faces and four rectangular faces. The area of the two trapeziums is 2 × 20 = 40 mm². The area of the two side rectangular faces ...

A 3D shape with all straight edges and flat ... A triangle has three sides. A triangular prism has three rectangular faces and two triangular faces, that is a total of five faces.