thought
It's a 'line'.
It is the parallel lines in Geometry!
No that would be a line
If the bar is a three dimensional object it will have some thickness. Then, assuming it is oblong in shape and knowing its length, width and thickness: Surface_area = 2 x (length x width + width x thickness + thickness x length)
A plane figure
A point has no length, width, or thickness. A line has infinite length but no width or thickness. A plane has infinite length and width but no thickness.
A line has infinite length, no width, no thickness, and no endpoints.
This would be a line, which has no width, no thickness and no endpoints, but has infinite length.
It's a 'line'.
A point.
It is the parallel lines in Geometry!
No that would be a line
A plane
A line fits this description.
a point
Time has no length, width or thickness.
A point. (Also time, language, concepts, etc.)