1 / 9

Lesson 3.2 Use Parallel Lines and Transversals

Lesson 3.2 Use Parallel Lines and Transversals. Goal: The learner will use angles formed by parallel lines and transversals. Activity. Draw a pair of parallel lines cut by a transversal. Trace your drawing on tracing paper.

jasonsjohnson
Download Presentation

Lesson 3.2 Use Parallel Lines and Transversals

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Lesson 3.2 Use Parallel Lines and Transversals Goal: The learner will use angles formed by parallel lines and transversals.

  2. Activity • Draw a pair of parallel lines cut by a transversal. • Trace your drawing on tracing paper. • Move the tracing paper so that 1 is over 5 of the original picture. Are they congruent? • Compare the eight angles and list the congruent pairs. Click on Me for something cool.

  3. Corresponding Angles Postulate • If two parallel lines are cut by a transversal, then corresponding angles are congruent. Identify pairs of corresponding angles. Find the measures of all the angles. 120° 2 5 6 3 4 7 8

  4. Alternate Interior Angles Theorem • If two parallel lines are cut by a transversal, then the alternate interior angles are congruent.

  5. Alternate Exterior Angles Theorem • If two parallel lines are cut by a transversal, then the alternate exterior angles are congruent.

  6. Consecutive Interior Angles Theorem • If two parallel lines are cut by a transversal, then the consecutive angles are supplementary.

  7. Why are the angles congruent? 60 120 115 60 115 60 100 100

  8. Using Algebra and Properties 115 (x + 5)

  9. 92 (2x -4)

More Related