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Geometry: Geometric Proof Introduction

Geometry: Geometric Proof Introduction. Chapter 2: Logic. Do Now. Given: If (5x+1)/2 – 8 = 0 Prove: x = 3. Homework. Questions? Comments? Confusions Ask Ask Ask !. Test. Any questions about the test?!?!?! ASK ASK ASK !. Yesterday. Algebraic Proofs TODAY: Geometric Proofs!.

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Geometry: Geometric Proof Introduction

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  1. Geometry: Geometric Proof Introduction Chapter 2: Logic

  2. Do Now • Given: If (5x+1)/2 – 8 = 0 • Prove: x = 3

  3. Homework • Questions? • Comments? • Confusions • Ask AskAsk!

  4. Test • Any questions about the test?!?!?! • ASK ASKASK!

  5. Yesterday • Algebraic Proofs • TODAY: Geometric Proofs!

  6. Geometric Proofs • Two Column Proof: contains statements and reasons organized in two columns.

  7. Example 5 • Given: <FGJ is congruent to <JGK, <JGK is congruent to <KGH, m<FGJ= 6x+7, and m<KGH= 8x – 5. • Prove: x=6

  8. Practice WS #19 Prove that if

  9. Practice WS #20 • Prove that if

  10. Practice WS #21 • Prove that if

  11. Practice WS #19

  12. Practice Problems • Try some on your own/in table groups • As always if you are confused call me over and ask a question!

  13. Exit Ticket • Given: ; and • Prove: x= -12 and BC=2x+5 Xx= -3/5

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