The document discusses relationships between lines and angles formed by transversals. It defines parallel lines as lines that do not intersect and are coplanar, and skew lines as lines that do not intersect and are not coplanar. A transversal is a line that intersects two or more coplanar lines. When a transversal crosses lines, it forms corresponding angles, alternate interior angles, alternate exterior angles, and consecutive interior angles that have specific relationships. Perpendicular lines intersect to form four right angles.

1. 3.1 & 3.2 Lines and Angles Objectives: - Identify relationships between lines - Identify angles formed by transversals