A 3D shape with one curved face is a cylinder. It has a circular base and a curved surface that connects the two bases. The curved face wraps around the side, while the top and bottom faces are flat circles.
Cone
A cone perhaps?
Sphere, torus, moebius strip
A sphere intersected by a plane, which could be a hemisphere. Alternatively, a cone, or a paraboloid.
Sphere
Sphere
Its an Cylinder
A cone.
Cone
A cone perhaps?
cylinder
cone
A cylinder
Sphere, torus, moebius strip
A cylinder.
A cone, like an ice cream cone.
cone