A cyliner has 2 parallel plane faces and 1 curved face
If they are plane faces the shape is likely to be a polyhedron.
It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.
A heptagon has seven polygonal faces - sides that are plane.
An irregular polyhedron if it has plane faces. If not, then there usually will not be a name for it.
Crystal
A pentagonal prism, a hexagonal pyramid, a cube with one vertex (corner) cut off, a tetrahedron with three vertices cut off - these are some of the possibilities.
The faces of a cylinder are circles.
A cyliner has 2 parallel plane faces and 1 curved face
The following are some examples of a shape with two flat face and one curved surface: A sphere intersected by two planes. An ellipsoid intersected by two plane faces. A paraboloid intersected by two plane faces. A cone intersected by two plane faces. A cylinder. A hyperboloid intersected by two plane faces.
With Spore.
yes
Pentagonal Prism
The official definition for the word crystals is a piece of a homogeneous solid substance having a natural geometrically regular form with symmetrically arranged plane faces."
If they are plane faces the shape is likely to be a polyhedron.
It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.It has 1 edge, 2 faces (one curved and one plane), and 1 vertex.
A plane. * * * * * A plane has no edges. It is infinite in extent.