A pyramid with a triangular base. It has 6 edges, or a pyramid with a square base, which has 7 edges
more is better
In a 3-dimensional shape with polygonal faces, an edge is a straight line at which two faces meet. A vertex is a point where three or more edges meet. In solid shapes which are not polyhedra, an edge is still a line - possibly curved - where two faces meet. But a vertex can be any corner, for example, the point of a cone.
To effectively hide plywood edges for a polished finish, you can use edge banding, veneer strips, or solid wood trim. These materials can be glued or nailed onto the edges of the plywood to cover them and create a more professional look. Sanding and painting the edges can also help achieve a smooth and finished appearance.
A sharp edge has a minute area across the contact point. This causes it to cut . The blunter an edge the greater effort require to form the cut and the less chance the cut will occur greater the size of the contact edge the greater the effort and the poorer the finish
That one.
A vertex.
A vertex.
That is a vertex.
A corner
vertex
vertex
vertex