Yes. [in 3-d].
Lines that never intersect are either parallel or skew to each other. If they're both in the same plane (or on the same piece of paper), then they're parallel.
Perpendicular lines can not be parallel to each other but they can be to other lines.
They do not cross. Lines that are parallel go in the same direction, but some distance apart. Coplanar means they are in the same horizontal plane. Therefore the two lines can never cross each other.
In order to describe parallel, you need 2 lines to be parallel to each other. The lines will lie in the same plane, and the right-angle distance between the 2 lines will be constant for the entire length of the lines. Since lines are infinite length in length, they will never intersect.
they are transversals to each others
Yes they are. It's a postulate: In a plane two lines perpendicular to the same line are parallel.
Parallel lines lying in a plane do not intersect each other. They share exactly zero points in common.
Two lines in a plane are parallel if they do not intersect, meaning they maintain a constant distance between each other and will never meet.
No. Parallel has a specific meaning. For lines to be parallel, they have to lie in a common plane, but not touch each other. If they are skew, they still don't touch each other, but they now do not lie in a common plane. More specifically, skew lines, by definition, are not co-planar.
So long as all three lines are in the same plane, yes.
any amount! It doesn't have to be just 2.
Yes. [in 3-d].
Intersecting lines are those that lie in the same plane and cross each other at some point. Unless they are parallel, lines in the same plane always cross.
They are parallel lines
In Euclidean geometry, any two lines in a plane that are not parallel will cross.
In Euclidean geometry, any two lines in a plane that are not parallel will cross.