a cone
A curved surface area can be described as one where the gradient of the normal to the surface changes smoothly from point to point.
A surface having no equivalent point at any plane
The shape you are describing is a cone. A cone has one flat circular base (which can be considered as having one edge), one curved surface that wraps around the base, and one apex or point at the top. Thus, it fits the criteria of having one edge, one curved surface, and one point.
A cone.
cornet
A sphere
A tangent
The shape of the face on a cone is a circular base at the bottom and a curved surface that narrows smoothly to a point called the apex. This curved surface is referred to as the lateral face of the cone. Overall, a cone has one circular face (the base) and one curved surface.
A curved surface of a lens can bend incoming light rays, focusing them to a point to form a clear image. The degree of curvature and the shape of the lens surface determine how the light is bent and where the focal point is located. This process is essential for the functioning of optical devices such as cameras, microscopes, and eyeglasses.
No but a cone has a curved surface
No prism can have a curved surface.
Yes, a cone has a curved surface, as it tapers smoothly from its circular base to a point at the top. In contrast, a pyramid has flat, polygonal faces and does not have a curved surface; its sides are made up of straight edges that meet at a vertex. Thus, only the cone exhibits a curved surface between its base and apex.