Such a line segment would be a radius of the circle.
The line segment is a radius.
A line segment has two endpoints
The segment you describe is the radius of the circle.
No its not the same
It has two endpoints. A ray has one endpoint.
That's a 'line segment'.
A line segment is a straight line that has an endpoint on both sides (look below). ----
By definition a line has no endpoint as it can extend to negative and positive infinity. A ray has one endpoint and a segment has two endpoints.
diameter
radius
A line segment