The vertex.
An angle is the union of two rays with a common endpoint.
The common endpoint of 2 rays that form an angle is the vertex.
An angle is formed by two rays with a common endpoint.
an angle precisely defined as the common endpoint of two rays
Angle
It's the vertex
An angle
angle
An angle consists of two rays called sides with a common endpoint called the vertex.
A figure that is made up of two noncollinear rays with a common endpoint is an angle. The angle that is formed can be acute, right, obtuse or reflex.
angle
it is an angle