



 
Samad, Look at the definition of a prism in our glossary. The diagram there is a triangular prism. It has five faces, you can count them. Draw a diagram of a rectangular prism and count the faces. Can you see how to determine the number of faces just based on the number of edges of the polygonal base without drawing a diagram? Penny  


Math Central is supported by the University of Regina and The Pacific Institute for the Mathematical Sciences. 