Lead students to see that a cone has no edges (at least no straight ones!), but the point where the surface of the cone ends is called the vertex of the cone. ... Although a cylinder has two faces, the faces don't meet, so there are no edges or vertices.

How many edges and corners does a cone have?

A cone will have one face and one edge but without a corner.

What are the edges of a shape?

An edge is where two faces, on a shape, come together. On 2D shapes, edges are the lines between each vertex. On 3D shapes, they're the lines that separate each face.