A line
angle
an angle has two rays with the same endpoint.
Two rays that have the same endpoint form an angle.
Angle An angle is formed by 2 rays extending from the same endpoint.
an angle is composed of two rays that have the same endpoint.
The vertex of an angle
I don’t know
They are three concurrent rays.
An angle.
An angle is formed by two rays with the same endpoint. If the two rays are perpendicular to one another, they form a right angle.
Two collinear rays with the same endpoint form an angle. They share a common initial point and extend in opposite directions. The endpoint where they meet is called the vertex of the angle.
Opposite rays are rays that share the same endpoint (have a common endpoint), but they also form a line.Not always.