A circle!
a cylinder.it has 2 circular faces and curves around
It cannot be a polyhedron nor any "normal" 3d shape.
A cone.
A cone perhaps
Rails curve when there are two rails placed at right angles to it. So if you form an L shape, the corner one will be curved.
A polyhedron with 9 faces: a nonahedron.A polyhedron with 9 faces: a nonahedron.A polyhedron with 9 faces: a nonahedron.A polyhedron with 9 faces: a nonahedron.
All in the world a vertex is, is a corner (or where the edges meet) of any shape...not just 3d but of course it can be:)
A seven faced body would be called a "heptahedron" There are no regular heptahedra (with all the faces the same shape and size). If you cut off the corner of a cube you will get a seven faced, 3 dimensional body.
A Cooling curve graph changes shape.
lateral faces
It is impossible, A shape has to have faces. But if you can have faces, then it is a dodecagon
what is a shape with twelve faces called