a sphere
A sphere would fit the given description
curve surface area
A Semi-Sphere :)
Cylinder - a solid figure formed by two congruent parallel circles joined by a curved surface.
a sphere
fbdg
Spheres and spheroids have.Wait ! Don't go away. Any solid of revolution generated bya plane figure with only curves will have only a curved surface.
A sphere would fit the given description
It is a cylinder
One if it is solid, two if it is hollow
A Semi-Sphere :)
curve surface area
Circle
One if it is solid, two if it is hollow
cone
The tetrahedron has only four faces. A sphere has only one, but that's probably not what you meant since the surface of a sphere is curved.