In 2D geometry, that is the definition of parallel lines. Two non-intersecting lines are indeed parallel.
No
parallel :D
In 2-dimensional space they must be parallel. In 3-d space they be parallel or skew lines I believe.
No: lines can be parallel and two (or more) rectangles in 3-d space can be parallel but a rectangle, by itself, cannot be parallel.
In 2D geometry, that is the definition of parallel lines. Two non-intersecting lines are indeed parallel.
No
parallel :D
Non-intersecting lines in 3-D space may be parallel but need not be.
It is the capital letter N that has vertical parallel lines.
Perpendicular lines intersect at a 90 degree angle. Parallel lines do not intersect, nor would they ever intersect if continued infinitely.
In 2-dimensional space they must be parallel. In 3-d space they be parallel or skew lines I believe.
No: lines can be parallel and two (or more) rectangles in 3-d space can be parallel but a rectangle, by itself, cannot be parallel.
When two lines are parallel, then they do not intersect.
If they were not actually parallel then they would not be parallel lines!
Skew lines can simply be described as two lines that are not coplanar (they are not in the same plane). This means that they do not intersect and are not parallel.
it has parallel lines