One.
But it is a bit tricky and depends on how you define an edge.
Many use the definition of a boundary of a geometric figure
Please see the link to the math forum at Drexel University.
There is a lengthy discussion of this topic.
A cone has one flat face, one curved face, one vertex and one curved edge.
One.
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2 edges 0corners
It has 0 sides
A cylinder and a cone - are two entirely different 3D shapes. A cylinder has three faces & two edges. A cone has two faces and one edge.
A cone has one vertex, one edge and two faces.
There are exactly 0 faces and edges in a cone .
A cone has two surfaces, one vertex and no edges.
2
One.
None
There are no edges on a cone
1
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2
zero.
A cone has one edge and 2 faces.
A cone has 1 face, 0 edges, and one vertex. The face is the circular flat area. The cone can roll, so it has no edges. Edges have to be straight. The vertex is the pointy thing opposite to the face.