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35 Proving Lines Parallel.notebook October 27, 2016 10/27 Honors Geometry Warmup When would we need to have parallel lines in real life? Oct 3012:31 PM 35 Proving Lines Parallel Postulate 3.4: If two lines in a plane are cut by a transversal so that corresponding angles are congruent, then the lines are _________________. Parallel Postulate (3.5): If given a line and point not on the line, then there exists exactly one line through the point that is _________________ to the given line. Nov 41:13 PM 35 Proving Lines Parallel.notebook October 27, 2016 Oct 249:29 AM Example 1: Determine which lines, if any are parallel. Nov 41:25 PM 35 Proving Lines Parallel.notebook October 27, 2016 Example 2: Find x so that line l is parallel to m. Nov 41:26 PM Example 3: Prove Lines Parallel Statement Reason Nov 41:15 PM 35 Proving Lines Parallel.notebook October 27, 2016 Example 4: Determine whether each pair of lines is parallel. Explain why or why not. Nov 41:28 PM