If they do intersect, it will be at their point of intersection.
In Euclidean geometry, parallel lines never intersect. They go this way forever and never intersect but watch this typing. _______________ _______________ In non-Euclidean geometry, they intersect when the faces are uneven.
It depends on how you define "ways" and how you define "lines" and how you define "intersect" and what kind of geometry you're talking about, but in Euclidean geometry, lines either never intersect, or they intersect at a single point, or they can intersect at all points within the lines.
Lines that intersect at right angles
They are lines that intersect at 90 degrees
None. Parallel lines do not intersect in Euclidean geometry.
Parallel lines remain equal distance apart and never intersect each other.
two lines meeting at a point.
In Euclidean plane geometry, two lines which are perpendicular not only can but must intersect. (I believe the same is true for elliptic geometry and hyperbolic geometry.)
No. In ordinary Euclidean geometry, parallel lines neverintersect.
A vertex? In non-euclidean geometry: A two distinct parallel lines intersect in the "Infinity zone"
In Euclidian geometry, which is the geometry of a plane surface, parallel lines do not intersect because that is the definition of parallel lines. But note that there are other geometrical systems in which parallel lines do intersect, for example if they are drawn on the surface of a sphere. Definition of parallel lines: Lines that always stay the same distance apart and never meet.