Lines

An intersecting line is a line that crosses another line at one point.

A line segment is a part of a line that has two endpoints.

A ray is a part of a line that starts at a point and extends infinitely in one direction.

Parallel lines are lines that never meet and are always the same distance apart.

Perpendicular lines are lines that intersect at a right angle (90 degrees).

Two points are needed to define a line.

A line extends infinitely in both directions, while a line segment has two endpoints.

No, two lines cannot be both parallel and intersecting; they are mutually exclusive.

Two lines that meet at a right angle are called perpendicular lines.

The symbol for a line segment is usually represented by two endpoints with a line over them, like AB.