1 / 8

3.4 Proving Lines 

3.4 Proving Lines . p. 150. Post. 3-4 – Corresponding s. If 2 lines are cut by a transversal so that corresponding s are , then the lines are . ** If 1  2, then l m. 1 2. l m. Thm 3.5 – Alt. Ext. s Converse.

Download Presentation

3.4 Proving Lines 

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. 3.4 Proving Lines  p. 150

  2. Post. 3-4 – Corresponding s • If 2 lines are cut by a transversal so that corresponding s are , then the lines are . ** If 1  2, then l m. 1 2 l m

  3. Thm 3.5 – Alt. Ext. s Converse • If 2 lines are cut by a transversal so that alt. ext. s are , then the lines are . ** If 1  2, then l m. l m 1 2

  4. Thm. 3.6 – Consecutive Int. s Converse • If 2 lines are cut by a transversal so that consecutive int. s are supplementary, then the lines are . ** If 1 & 2 are supplementary, then l m. l m 1 2

  5. Thm. 3.7 – Alt. Int. s Converse • If 2 lines are cut by a transversal so that alt. int. s are , then the lines are . ** If 1  2, then l m. 1 2 l m

  6. Yes, alt. ext. s conv. No No Ex: Based on the info in the diagram, is p q ? If so, give a reason. p q p q p q

  7. The angles marked are consecutive interior s. Therefore, they are supplementary. x + 3x = 180 4x = 180 x = 45 Ex: Find the value of x that makes j  k . xo 3xo j k

  8. Assignment p. 149 (1, 3, 7-13, 19-27)

More Related