Parallels and Transversals Objective: Identify Angles formed by Two Lines and a Transversal.
Parallel Lines – Two lines in the same plane which never intersect. Symbol: “ // ” Transversal – A line that intersects two coplanar lines, Intersecting Lines or // line. 8 Special Angles are formed Interior Portion of the // Lines t m n
Investigate Handout
Corresponding Angles 1 5 2 6 3 7 4 8
Vertical Angles 1 4 2 3 5 8 6 7 Vertical Angles
3 6 4 5 Alternate Interior Angles 3 & 5 4 & 6 Same-Sided Interior Angles Are congruent Are Supplementary( = 180)
ve-transveral-angles.php Interactive Parallel Lines
Parallel Postulate Euclid’s Fifth Postulate: Parallel Postulate If there is a line and a point not on the line, then there is exactly one line through the point parallel to the given line. If there is a line and a point not on the line, then there is exactly one line through the point parallel to the given line. P l