It could be a Euclidean plane.
A line is a series of points that extends in two opposite directions without end.It has no thickness.
A plane.
It is called a line segement
It is a plane
A plane
a line
Plane is one of the undefined terms in mathematics which has no thickness or depth but has length and width, it extends without end in all directions.
i think i line.
plane
plane
A line.