# What Is A Vertex?

A vertex is the meeting point for where two straight lines. In the plural, the vertex is vertices. According to geometry, line and rays are very different, while a point is usually marked with a tiny dot in space.

Rays are usually continuous, with no end moving in one direction, as shown by an arrow on one end of the beam. However, line segments have a finishing point at any order and are only marked with points and not arrows.

Moreover, geometry explains an intersection as the point of crossing for two lines. These lines have no finish point in both directions, marked with an arrow on each end. Still, intersections can be vertices because the point of intersection is where the rays break up.

### What Is The Vertex Of An Angle?

This is the point where two line segments meet or join or where two rays start or meet. Still, it is the point where two lines cross or any correct arrangement of rays, lines, and segments forming two straight "sides" coming together at one place.

### What Is The Vertex Of A Plane Tiling?

A vertex of a plane tiling is when more than three or more tiles meet. Usually, but not in all situations, the tiles of a tessellation are polygons, while the vertices of the tessellation are also vertices of its tiles.

In general, a tessellation is the mathematical view of a cell complex and the sides of a polyhedron or polytope. Besides, the vertices of more types of complexes like simplicial complexes are its non-dimensional faces.

### What Is The Vertex Of A Polytope?

A vertex is the meet point at the corner of a polyhedron or other large-sized polytope. It forms when there's an intersection of edges or facets of the object.

The vertex of a polygon is called a convex only if the internal angle measures less than the radius. But in other cases where it is more than the standard radius, it is called a reflex or concave. Usually, the vertex of a polytope is convex when crossing the polytope with an adequately little circle at the vertex is convex. The concave occurs in otherwise situations.

Moreover, polytope vertices normally have a similar relationship with vertices of graphs. This is when the frame of a polytope is a graph. Also, you can view the vertices of which match the polytope's vertices in the graph as a 1-dimensional simplicial complex. In short, these vertices are the same as the graph's vertices.

But from a graph's point of view, vertices can have less than two incident edges, which is normally inapplicable for geometric vertices. Still, there's a relation between the geometric vertices and the curve vertices with extreme curvature.

Conversely, the vertices of a polygon are equal to points of immeasurable curvature. But when a polygon has the estimates of a smooth curve, it will form a point of extreme curvature close to each polygon vertex. Yet, a smooth curve estimate to a polygon also has extra vertices at the ends of minimal curvature.

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