It can, but need not. Only a right prism must.
A prism has two congruent parallel bases.
An upright pentagonal prism has two congruent parallel bases and 15 edges.
prism and cylinder
A prism..
Prism, Cylinder, and Cube
A prism has two congruent parallel bases.
A prism. A triangular prism has two congruent triangles as bases, rectangular prism, pentagonal prism, etc.
A Base. * * * * * What? Every prism, by definition, has two congruent faces which may be called the bases of the prism.
prism
Both a cylinder and a prism can have parallel and congruent bases.
Its "bases"
A prism
A solid figure that has two congruent polygons as bases and lateral faces that are rectangles is called a prism. In a prism, the two bases are parallel and congruent, while the lateral faces connect the corresponding sides of the bases and are rectangular in shape. The type of prism is often specified by the shape of its bases, such as triangular prism or rectangular prism.
An upright pentagonal prism has two congruent parallel bases and 15 edges.
A triangular prism has two bases that are congruent triangles, but they are not necessarily equilateral. The bases can be any type of triangle, including scalene or isosceles triangles, as long as they are congruent. Therefore, a triangular prism can have equilateral triangle bases, but it is not a requirement.
Each and every prism has two parallel congruent bases. It is the shape of these bases that give the name to the prism: a pentagonal prism has pentagons (not necessarily regular) for its bases.
No, it only has one.