a sphere or an ellipsoid.
Sphere
A figure that has a curved face or curved edge.
A sphere has just one curved face.
A cone.
A cone has one curved face, which is the surface that wraps around from the base to the apex. In addition to the curved face, a cone also has one flat circular base. Therefore, in total, a cone has one curved face and one flat face.
A paraboloid.
The solid that has one flat face, one curved face, one edge, and one vertex is a cone. The flat face is the circular base, the curved face is the conical surface, the edge is the circular boundary where the base meets the curved surface, and the vertex is the pointed tip of the cone.
Get a ball. Draw any closed shape on it. The part inside the curve that you drew is one curved face and that is contained by the surface of the ball which is the other curved face.
The shape with two flat circular faces and one curved face is a cylinder. The two circular faces are parallel and congruent, while the curved face connects these two circles around their perimeter. This geometric figure is commonly seen in everyday objects like cans and tubes.
A hemisphere
it is a three dimensional cone , the circle is the edge of the figure and the curved side is the body of the cone, the vertex is the point of the cone
a cone