A semicircle
The solid figure you're describing is a cylinder. It has two circular bases, but if we consider a cylinder without its bases, it consists of a single curved surface wrapping around the height of the cylinder. Another example of a solid figure with one curved surface and no bases is a cone if we only consider the curved part without the base.
A sphere would fit the given description
A solid figure with one circular base and one curved surface is called a cylinder. In a cylinder, the circular base is parallel to the other circular base (if there is one), and the curved surface connects the edges of the base, forming a three-dimensional shape. If it has only one base, it can be considered a cone, which has a circular base and a single curved surface that narrows to a point.
Cylinder - a solid figure formed by two congruent parallel circles joined by a curved surface.
a sphere has no bases and it only has one curved surface
I am not sure that such a surface can exist.
The solid figure you're describing is a cylinder. It has two circular bases, but if we consider a cylinder without its bases, it consists of a single curved surface wrapping around the height of the cylinder. Another example of a solid figure with one curved surface and no bases is a cone if we only consider the curved part without the base.
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A paraboloid.
A sphere would fit the given description
A solid figure with one circular base and one curved surface is called a cylinder. In a cylinder, the circular base is parallel to the other circular base (if there is one), and the curved surface connects the edges of the base, forming a three-dimensional shape. If it has only one base, it can be considered a cone, which has a circular base and a single curved surface that narrows to a point.
A figure with 2 circular bases and one curved surface is called a cylinder. Examples are food cans.
Cylinder - a solid figure formed by two congruent parallel circles joined by a curved surface.
A cone.
a sphere has no bases and it only has one curved surface
A paraboloid.
Circle