Vertex, vertices

A vertex is a point where two straight lines or rays meet to form an angle, the edges of a solid figure meet and the corners of polygons and polyhedra are vertices.

Vertices are found in angles, which are measured in degrees. 

             

Pentagon	Triangular Pyramid	Rectangular Prism	Hexagonal Prism

 

---

Examples: 

Every triangle has three vertices.

Rectangular Prism has 8 vertices

Hexagonal Prism has 12 vertices

Triangular Pyramid has 4 vertices