A prism.
They are prisms.
hexagonal prism
The bases of a prism or cylinder are congruent and parallel and they meet the lateral face (cynder) or faces (prism) at right angles. A cross section parallel to the longitudinal axis will, therefore, be a rectangle.
Not true. They have only one base and several (3 or more) lateral triangular faces. A pyramid has a single vertex over a base - there are no parallel faces in any pyramid.
cylinder
A rectangular prism has congruent bases and parallelograms as lateral surfaces.
Prisms have two parallel and congruent bases connected by rectangular lateral faces, while cylinders have two circular bases connected by a curved lateral surface. Prisms have flat sides and edges, while cylinders have a curved surface.
A prism.
A cylinder
A cylinder
No, a prism does not have an apex. A prism is a solid geometric figure with two parallel and congruent bases that are connected by lateral faces. The apex refers to the highest point or vertex of a shape, which is not applicable to prisms.
They are prisms.
It is called a prism.
In normal usage "polyhedron" refers to solids whose edges are straight lines, not curves, so a strict answer would be: there is no such polyhedron.
hexagonal prism
No, a prism cannot have curved sides. A prism is a polyhedron with two parallel and congruent polygonal bases connected by lateral faces that are parallelograms. The lateral faces of a prism are always flat, planar surfaces that are perpendicular to the bases. Curved sides would not meet the definition of a prism.