Think about it,
the x & y planes intersect and what one number has both,
the x & y planes intersect.
0 on the coordinate plane is the,
i think it is coordinate plane
Coplanar lines that do not intersect are parallel. Non-coplanar lines that do not intersect are called skew lines.
If the lines are in the same plane and never intersect they are always parallel. Two line can not intersect and be parallel if they are in different planes though. Take a cube for example, if you have one Sid of it and take the edge and then go to the opposite side and make a horizontal line they will never intersect but are also not parallel.
Parallel lines NEVER touch, so zero.
Two planes that intersect are simply called a plane to plane intersection. When they intersect, the intersection point is simply called a line.
I believe this is possibly called a vector. They begin at the same point, however, they do not run on the same plane, nor do the intersect. As I said, they do begin at the same point and form a triangle.
A two dimensional plane.
Two lines that do not intersect on the same plane are Parallel lines.
If the two lines lie in the same plane, and they do not intersect, then they are parallel. If they are not in the same plane, and do not intersect, then they are called skew lines.
a coordinate plane
parallel lines If they are not on the same plane and never intersect they are skew
always. if two lines intersect, then exactly one plane contains the lines.
Because they are parallel lines.
parallel lines :)