PARALLEL LINES & TRANSVERSALS Parallel Lines - lines in the same plane that will never intersect
Skew Lines - lines that do not intersect and are not in the same plane. Transversal - a line that intersects two or more lines in a plane
Interior Angles - angles that are between the lines Exterior Angles - angles that are outside the lines
Alternate Interior Angles - they are on opposite sides of the transversal Alternate Exterior Angles - they are on opposite sides of the transversal
Consecutive Interior Angles -They are sometimes called Same-Side Interior Angles - they are on the same side of the transversal
Corresponding Angles - they are an exterior and interior angle on the same side of the transversal but not adjacent angles.