In this section we will be reviewing what we know about parallel and perpendicular lines, their characteristics and how they affect angle relationships. First lets start with some basic vocabulary. Have your Ch. 1 Vocab Notes out and ready to go.
Intersecting Lines: any two lines that intersect at one point
Parallel Lines: lines that do NOT intersect and are equally spaced
Perpendicular Lines: lines that intersect at a 90 degree angle
Transversal: In geometry, a transversal is a line that passes through two lines in the same plane at two distinct points. Transversals play a role in establishing whether two other lines in the plane are parallel. Basically, a transversal is a line that goes through two or more parallel lines as seen in the diagram below. When the transversal intersects two parallel lines these intersections form pairs of angle relationships, which we will discuss in the next section.
Parallel Lines: lines that do NOT intersect and are equally spaced
Perpendicular Lines: lines that intersect at a 90 degree angle
Transversal: In geometry, a transversal is a line that passes through two lines in the same plane at two distinct points. Transversals play a role in establishing whether two other lines in the plane are parallel. Basically, a transversal is a line that goes through two or more parallel lines as seen in the diagram below. When the transversal intersects two parallel lines these intersections form pairs of angle relationships, which we will discuss in the next section.