A vertex is a point where two or more line segments meet, forming a corner. The plural of vertex is vertices. In geometry, vertices are important in determining the overall properties of a shape, such as its angles, area, and perimeter. Some features of a vertex include:
- A vertex is a common endpoint of two or more line segments or rays.
- In polygons, the number of vertices is equal to the number of sides.
- In 3D shapes, such as cubes and cuboids, there are several vertices.
- In 2D shapes, such as polygons, there is only one vertex.
Vertices are also important in describing angles, which is a fundamental concept in geometry. For example, the vertex angle is the angle formed when two line segments or rays meet at a common endpoint, called the vertex.