Lines which are parallel. All other lines on the same plane eventually intersect.
If two lines are perpendicular, they intersect at a right angle. So yes, they will always cross each other.
doraemon the cartoon jumping
Parallel lines in the Euclidean plane do not intersect but all parallel lines in the projective plane intersect at the point at infinity.
a Cartesian Coordinate plane
Lines that that intersect each other at right angles on a plane are perpendicular lines.
Lines which are parallel. All other lines on the same plane eventually intersect.
Lines in the same plane that do not intersect Lines in the same plane that do not intersect Lines in the same plane that do not intersect Lines in the same plane that do not intersect
If two lines are perpendicular, they intersect at a right angle. So yes, they will always cross each other.
doraemon the cartoon jumping
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.
All non-parallel lines in a plane will intersect at some point in the plane.
Two lines that do not intersect on the same plane are Parallel lines.
Parallel lines in the Euclidean plane do not intersect but all parallel lines in the projective plane intersect at the point at infinity.
a Cartesian Coordinate plane
Perpendicular lines intersect each other at right angles.
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.