A cone has either one or two surfaces and either one or no edges.
A cone has one curved edge
A cone has a curved base edge and 1 vertex
Two: inside and outside.
One curved surface (two if it is hollow) and no edges.
A 3D cone has two distinct surfaces: one curved surface that wraps around the cone and one flat circular base. Therefore, it can be said to have one curved side and one flat side, totaling two sides. However, in terms of edges and vertices, a cone has one edge (the circumference of the base) and one vertex (the tip of the cone).
A cone has one curved surface.
A cone has one curved edge
It has a flat base, a curved surface area, a circular edge and one vertex.
It has one.
A cone has a curved base edge and 1 vertex
Two: inside and outside.
An empty cone (like an ice-cream cone) doesn't have any flat surfaces. It has two curved surfaces, one outside and one inside. A solid cone has a flat base, and one other curved surface.
it has 67 bases
1 edge and 2 surfaces
The geometrical object known as a cone has no planar faces, two curved surfaces, no edges and one vertex. A "real" object often called a cone is a portion of a half cone. That has one base, a curved surface, and one vertex.
One curved surface (two if it is hollow) and no edges.
An empty cone (like an ice-cream cone) doesn't have any flat surfaces. It has two curved surfaces, one outside and one inside. A solid cone has a flat base, and one other curved surface.