a triangular prism has to triangular bases while a rectangular prism has a rectangle as the bases.
6
62 bases
There are 6 bases
It depends on what kind of prism you mean. For example, a rectangular prism has 6 bases and a triangular prism has 5 bases. A triangular prism only has two bases.
none
A rectangular cube (a cuboid) is a kind of prism and, by convention, prisms have two bases.
Rectangular prism
rectangular prism
Both have rectangular bases.
four
A triangular prism has five bases because it can be flipped over to form five different bases