 Lesson 5: Proving Lines Parallel.  Corresponding angles are congruent,  Alternate exterior angles are congruent,  Consecutive interior angles are.

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Presentation transcript:

 Lesson 5: Proving Lines Parallel

 Corresponding angles are congruent,  Alternate exterior angles are congruent,  Consecutive interior angles are supplementary,  Alternate interior angles are congruent,  Two lines are both perpendicular to the transversal, Then the lines are parallel.  If given a line and a point not on the line, there is exactly one line through that point that is parallel to the given line

B. Given m  1 = 103 and m  4 = 100, is it possible to prove that any of the lines shown are parallel?. A. Given 1  3, is it possible to prove that any of the lines shown are parallel?

Find ZYN so that ||. Show your work.

A. Given  9   13, which segments are parallel? B. Given  2   5, which segments are parallel? C. Find x so that AB || HI if m  1 = 4x + 6 and m  14 = 7x – 27. __ ___

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