any amount! It doesn't have to be just 2.
they are transversals to each others
Not necessarily. They could be skew lines, and satisfy these conditions.
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.
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.