difference between vertices and sides
Vertices, Edges and Faces. A vertex is a corner. An edge is a line segment that joins two vertices. A face is an individual surface. Let us look more closely at each of those: A vertex (plural: vertices) is a point where two or more straight lines meet. It is a Corner. This tetrahedron has 4 vertices. An edge is a line segment that joins two vertices on the boundary or where faces meet. For a polyhedron they are where two faces meet. This tetrahedron has 6 edges. For a polygon they are on the boundary. Sometimes called sides.
Edges are the lines that connect the vertices. The vertices are the actual points where the edges meet. Edges are the lines that connect the vertices. The vertices are the actual points where the edges meet.