5 faces- the two triangular bases and then the 3 rectangles that connect the two bases
5
5 faces in all. including one base. And 5 vertices.
A pentagonal prism has 7 sides : 5 side faces and 2 bases.However, if all sides of the prism are considered faces, a shape with5 total faces including the 2 bases is a triangular prism.
Triangular prism
triangular prism
A pentagonal prism
A triangular prism.
A prism *always* has 2 bases. In case you meant "faces" instead of "bases", the prism with the smallest number of faces is the triangular prism - which has 5 faces. If there were any fewer number of faces, the prism which become a two dimensional object.
Technically, the bases are also considered faces, however, seeing what you mean, you are looking for a triangular prism.5 faces (2 bases, 3 faces)6 vertices.9 edges.V - E + F = X,6 - 9 + 5 = 2, which confirms the Euler Characteristic.
Two bases and three vertical sides make 5 faces.
A square based pyramid has 8 edges, 6 vertices and 5 faces.