1 / 19

2-20-13 Parallel Lines and Transversals

Place interim and contract on your desk. 2-20-13 Parallel Lines and Transversals. Essential Question: Why would you need to know about the relationships of the angles formed when parallel lines are cut by a transversal ?. BOP - Solve . 1. n + 45 = 180 2. 75 + x = 90

zagiri
Download Presentation

2-20-13 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. Place interim and contract on your desk . 2-20-13 Parallel Lines and Transversals Essential Question: Why would you need to know about the relationships of the angles formed when parallel lines are cut by a transversal? BOP - Solve. 1. n + 45 = 180 2. 75 + x = 90 3. 3y = 2y + 90 4. 2a + 15 = a + 45 DWP: On next slide

  2. DWP JUSTIFY YOUR ANSWER!

  3. Angle Relationships and Parallel Lines PRE-ALGEBRA LESSON 9-2 Solutions 1.n + 45 = 180 2. 75 + x = 90 n + 45 – 45 = 180 – 45 75 – 75 + x = 90 – 75 n = 135 x = 15 3. 3y = 2y + 90 4. 2a + 15 = a + 45 3y – 2y = 2y – 2y + 90 2a – a + 15 = a – a + 45 y = 90 a + 15 = 45 a + 15 – 15 = 45 – 15 a = 30 9-2

  4. DWP 20 cm

  5. VOCABULARY CARD CHECK If you have test corrections or WBW #1 corrections, turn them in.

  6. ADD TO VOCABULARY CARDS Symbol for congruence

  7. 1 3, 2 4, 5 7, 6 8 2 7, 6 3 Angle Relationships and Parallel Lines PRE-ALGEBRA LESSON 9-2 In the diagram, p || q. Identify each of the following. a. congruent corresponding angles b. congruent alternate interior angles 9-2

  8. JUSTIFY YOUR ANSWER!

  9. ANNOTATE THE DIAGRAM

  10. COMPLETE PROBLEMS ON D91 WORKSHEET And Kuta Software - Exterior Angle Theorem

  11. EXIT TICKET-Draw the picture below and answer Questions 1, 2, 3; Use the appropriate symbol for congruence. 1 5, 2 6, 4 8, 3 7 4 7, 2 5 PRE-ALGEBRA LESSON 9-2 In the diagram, d e. 1.Find the m 5 if m 8 is 35°. 2. Name the congruent corresponding angles. 3. Name the congruent alternate interior angles. 145° Homework: Finish corrections; work on problems in textbook due Friday; Quiz tomorrow.

More Related