(1) A student used the following argument to show why 2 lines are parallel: “since the consecutive angles are congruent, the lines are parallel.” Is the.

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Presentation transcript:

(1) A student used the following argument to show why 2 lines are parallel: “since the consecutive angles are congruent, the lines are parallel.” Is the student correct in his argument? If not, how might he want to explain his argument? (2) An architect building your dream house is asking you for ways that you can tell whether a line is parallel. Please explain in your own words or pictures, the 4 methods of proving that 2 lines are parallel that you learned yesterday. **If you finish early, you may start looking at your study guide for assessment 5**

WE WILL: Review transversal angle pair relationships so that we can: - Find missing angles - Prove that lines are parallel

 Bell Work  Homework Questions- Go Over Proof  Review Foldable  Study Guide Work Time  Exit Ticket

For the following picture, I will call on random students to tell me whether or not the lines are parallel? Please refer to one of the angle pairs in your answer.

Determine if the lines are parallel (and why) if: (1) m ∠ 1=130°, m ∠ 8=130° (2) m ∠ 2=60 °, m ∠ 6=60° (3) m ∠ 5=40°, m ∠ 4=50° (4) m ∠ 3=87°, m ∠ 5=93 ° (5) m ∠ 4=100°, m ∠ 6=100° (6) m ∠ 2=75°, m ∠ 5=100°

 Please take out your construction paper and follow the pictures and demonstrations  You’ll want to fold the foldable hot dog shape, but make sure the bottom side is about an inch longer than the top side.

 Please work independently and silently on your study guide.  Be sure that you are showing all work.  You are welcome to use your foldable, and notes from this week.

Find the values of the variables in the following picture given that the lines AB and CD are parallel.

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