A line segment
A straight line other than a line segment which does have end points.
The mathematical figure that has length but no beginning or end is a line. In geometry, a line is defined as a straight one-dimensional figure that extends infinitely in both directions. It has no endpoints, allowing it to continue indefinitely, making it distinct from line segments, which have defined starting and ending points.
An infinite set can not terminate.
ray
A line.
A straight line other than a line segment which does have end points.
A circle.
If you mean a straight line that does not extend BEYOND it's two end points, then that would be a 'line segment.'
An infinite set can not terminate.
You had us baffled at "straight curve" . Could you mean if you start at the north pole, walk in a straight line, you will eventually get back to the north pole and round in a circle. Hence a straight line but no end points.
line
a line segment
No because a defined straight line has 2 end points.
A line segment is a straight line with end points
A line.
ray
Yes. A line segment is part of a line. It is distinguished by its end points. It contains all the points between its end points. A line segment is a subset of the line it rides.