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fg
A line.
A straight line
raylineA straight line with no defined end points
A plane is 2-dimensional, and has infinite extent in any direction.
A line is one dimensional and can have infinite length.
fg
A line.
a ray and a line
A straight line
Line and Ray APEX
raylineA straight line with no defined end points
A plane is 2-dimensional, and has infinite extent in any direction.
Infinite! Millimeters are a measure of length and are therefor 2 dimensional. Litre are a measure of volume and are 3 dimensional. Since millimetres have no volume you can stack as many of them as you like in a litre.
You can not cover a one dimensional LENGTH with a three dimensional VOLUME.
No, it is one dimensional. In only has one measurement, length.
All three dimensional figures have more faces than a one dimensional figure. There are an infinite number of one dimensional points on a three dimensional figure