Two perpendicular lines will meet in a right angle (90 degrees) if they exist on a flat plane.
Lines intersect if the meet at one point. Perpendicular lines also meet at one point, but their intersection is a right angle. Intersecting lines in the plane do not meet at two points.
Not necessarily. Two skew lines will not lie in the same plane. For example, consider you are standing in a cuboid room facing a wall. Then think of line 1 = the line where the floor and opposite wall meet. Line 2 = the line where two other walls meet. These two lines are not in the same plane.
They are parallel lines
coordinate plane
Two coplanar (in the same plane) lines that don't meet are parallel.
Two perpendicular lines will meet in a right angle (90 degrees) if they exist on a flat plane.
Lines intersect if the meet at one point. Perpendicular lines also meet at one point, but their intersection is a right angle. Intersecting lines in the plane do not meet at two points.
Not necessarily. Two skew lines will not lie in the same plane. For example, consider you are standing in a cuboid room facing a wall. Then think of line 1 = the line where the floor and opposite wall meet. Line 2 = the line where two other walls meet. These two lines are not in the same plane.
A quadrilateral is a closed plane (2-dimensional) shape bounded by four straight lines that meet at four vertices.
Lines in a plane can intersect at only one point.
They are parallel lines
Parallel.
coordinate plane
Assuming that by opersit is meant opposite, the answer is NONPARALLEL LINES. If they are in the same plane then (and only then) they would be intersecting lines (lines that meet at some point in the plane). But if they are not in the same plane they need not meet even if they are not parallel. So the answer that they are intersecting lines is incomplete and therefore incorrect. To visualise nonparallel lines that do not intersect, consider a room. Think of the [horizontal] line formed by the floor and the wall opposite you. Think of the [vertical] line formed by the wall behind you and the wall to your right. These two lines are not parallel, but they will not meet - ever.
Any two lines that meet must be in a plane. The plane may not necessarily be horizontal or vertical such as X-Y or X-Z or Y-Z
Parallel lines are always the same distance apart and never touching. This is the definition of parallel in the plane. When we deal with spheres and other geometries, we must sometimes modify this definition. In any case, in the plane they do not meet.