1 / 10

10/26 Bell Ringer

10/26 Bell Ringer. Step 1: Grab materials from front of the room. Step 2: Get out your homework and vocab Step 3: Find the missing angle’s measurement:. 75 °. 22°. X °. X °. X °. Finish Vocab Sheet! Finish today’s handout. 10/26 News and Notes. Missing Quizzes: 1 st : Breniah

kacia
Download Presentation

10/26 Bell Ringer

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. 10/26 Bell Ringer Step 1: Grab materials from front of the room. Step 2: Get out your homework and vocab Step 3: Find the missing angle’s measurement: 75° 22° X° X° X° Finish Vocab Sheet! Finish today’s handout.

  2. 10/26 News and Notes • Missing Quizzes: • 1st: Breniah • 7th: Brian L, Jasmine R • 8th: Sandy, Desirae, Cristian, Lorena, Nicole, Jasmine Z. • Rest of week plan: T = Proofs, W = Review/Wrap-up, TH = Study habits, F = Test

  3. 10/26 Agenda I CAN review Common Segment Theorem Proof, construct the Common Angle Theorem proof, and practice by proving the Vertical Angle Theorem. • Bell Ringer • New Material – Questions to consider • Guided Practice – Common Angle Thm • Independent Practice – Vertical Angle Thm.

  4. Today’s Goal • Use our theorems that we proved yesterday as reasons in new proofs!

  5. New Material – Review the Common Segment Theorem Proof LA = IN LA + AI= IN + AI AI = LI AI = AN LI = AN QED!

  6. New Material – Common Segment Theorem • If AC = BD, then AB = CD • If AB = CD, then AC = BD • Why does this work? • Because AC and BD have BC in common

  7. What is given in this example? TW = XS QV = TX • What do we want to prove by the end? QV = WS • What does the Common Segment Theorem allow you to do with TW and XS? TX = WS • How does the Transitive (or Substitution Property) allow you to combine QV = TX with your answer to the previous question? QV = WS

  8. THE PROOF! TW = XS Given Given QV = TX Common Segment Theorem TX = WS Transitive Property of Equality (or Substitution) QV = WS QED! QED! QED!

  9. Now try on your own… • First answer guiding questions, then convert your answers to finish a proof of the Vertical Angle Theorem. • You must have questions answered and have started the proof by the end of class. • If you have questions raise your hand. • Class disruptions will not receive credit.

  10. Up for a challenge?

More Related