noun
vertex
VUR-teks/ˈvɜːrteks/
A point where lines, edges, or surfaces meet.
Each vertex of a triangle joins two of its sides.
Etymology
Latin vertex meant “highest point,” giving geometry the point opposite a figure's base. The selected sense extends that summit-like point to a meeting place of lines, edges, or curves.
In context
angles are created by two rays that share a common vertex the Rays are called the sides of the angle and the point they have in common is of course called the vertex
More examples
- A cube has eight vertices.
- Mark the vertex where these two rays meet.
- The angle's vertex lies at the center of the circle.
Forms
vertex · vertices · vertexes
Similar words
- corner
- An everyday term for where sides or edges meet.
- intersection
- Includes points where lines cross, not just meet at endpoints.