That's one of the paradoxes of Euclidean geometry, where a line/line segment is made up of an infinite number of points, but those points have no length or widt

That's one of the paradoxes of Euclidean geometry, where a line/line segment is made up of an infinite number of points, but those points have no length or width, and infinity times 0 is still 0, so technically a line should have no length. Clearly, it does not.