The common end point of the sides (or arms) of an angle is the vertex of the angle.
The common end point of the sides of an angle is called the vertex. The sides are referred to as rays.
vertex
vertex
vertex
vertex
the vertex is the common endpoint
A triangle.
A vertex (plural = vertices).
< the point where the two rays meet is called a vertex.
Two adjacent sides of a polygon will meet at a vertex. End points of any other pairs of sides do not have a specific name.
That's the angle's "vertex".