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# G Nov3 P6

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Geometry notes on 2.5, given on 11/3 in period 6.

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### G Nov3 P6

1. 1. G­2.5 Noters _p6 November 03, 2009 Agenda date: _______________  period:________ Lesson ~ §2.5 ­ Proving Angles Congruent place this assignment in the top left­hand  box on "October" (the 1st box under  Monday). Homework ~ 2.5:  #1­35 OW (Wednesday) RR MO TO §2.5: Proving Angles ≅ Complementary Angles Supplementary Angles 28 62 62 Adjacent Angles Vertical Angles Complementary Angles Linear Pair Supplementary Angles 118 3 2 Adjacent Angles 2 1 1 4 Vertical Angles Linear Pair 1 Supplementary Angles 2 Complementary Angles Angle Pair Relationships:
2. 2. G­2.5 Noters _p6 November 03, 2009 ex (1) Identify the Angle Pairs 2 1 3 5 4 Thm 2.1:  Vertical Angle Thm. Vertical angles 2 1 3 are congruent. 4 Proof of Thm. 2.1: Given: 1& 3 are vertical angles. Prove: 1≅ 3 (paragraph proof)
3. 3. G­2.5 Noters _p6 November 03, 2009 Thm 2.2:  Congruent Supplements Thm. If 2 angles are supplementary to the same angle, then they 2 are congruent. 1 3 4 Proof of Thm. 2.2 2 Given: Angles 1 & 2 are supplementary 1 Angles 2 & 3 are supplementary 3 Prove: Angle 1 is congruent to angle 3. (paragraph proof)
4. 4. G­2.5 Noters _p6 November 03, 2009 Thm 2.3:  Congruent Complements Thm. If 2 angles are complementary 3 to the same angle, then the 1 2 2 angles are congruent. Thm 2.4:  "Right Angle" Thm. All right angles are congruent. Thm 2.5:  "≅ Right Angle" Thm. If 2 angles are 1 2 congruent & supplementary, then each is a right angle. 3 4
5. 5. G­2.5 Noters _p6 November 03, 2009 Assessment Ch. 2 Assessment Tuesday 11/3 ⇒ 2.5 Notes Wednesday 11/4 ⇒ Review of Ch. 2 Material Take­home Assessment Thursday 11/5 ⇒ Begin Ch. 3
6. 6. Attachments G_2.4 HW.PDF G­Supplement to Notes­Nov3.doc