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Geometry. Geometry Date: 11/8/2011 Sect. 4.3 pg 185-188 ID Check Obj.: SWBAT Parking Lot: Lesson 4-1 pg 760 #1-9; pg 155 #35- 37; 182 # 39, HW Requests:

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Presentation on theme: "Geometry. Geometry Date: 11/8/2011 Sect. 4.3 pg 185-188 ID Check Obj.: SWBAT Parking Lot: Lesson 4-1 pg 760 #1-9; pg 155 #35- 37; 182 # 39, HW Requests:"— Presentation transcript:

1 Geometry

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3 Geometry Date: 11/8/2011 Sect. 4.3 pg 185-188 ID Check Obj.: SWBAT Parking Lot: Lesson 4-1 pg 760 #1-9; pg 155 #35- 37; 182 # 39, HW Requests: Worksheets 4.1 and 4.2; HW: pg 195 10-20 evens 26, 27, 29-34 Read Sect. 4.4 Quiz 4.1-4.3 Thursday SWBAT name and label corresponding parts of congruent triangles (CPCTC) and apply these principles to solve algebraic applications.

4 11/ 9/11 Sect. 4.4 Prove  ’s  using SSS and SAS Postulates Obj: SWBAT apply properties of  ’s, of congruence and the SSS and SAS to test for  congruence. 1.Bell Ringer: See overhead Parking Lot: pg 155 #35, 37; pg 195 #36, pg 181 # 39 2. HW Requests: pg 195 10-20 evens 26, 27, 29-34 3. In class: pg 202 #2-9 Exit Ticket #9 HW: Pg 204 #11-21 odds, 22-25; Copy proofs in notes Announcements: Quiz Thursday 4.1-4.3

5 11/ 10/11 Sect. 4.4 Prove  ’s  using SSS and SAS Postulates Obj: SWBAT apply properties of  ’s, of congruence and the SSS and SAS to test for  congruence. 1.Bell Ringer: Quiz Parking Lot: pg 155 #35, 37; pg 195 #36, pg 181 # 39 2. HW Requests: pg 202 #2-9 Exit Ticket #9 HW: Pg 204 #11-21 odds, 22-25; Copy proofs in notes Announcements: Binders Dec. 9th

6 SSS Post. – If sides of one  are  to sides of a 2 nd , then the  ’s are . Warning Danger – Read example proofs in text. See Ex 1 SSS(1, 2, 3) or SAS( 1, 1, 3) Tells where in the proof you have proven a side or an angle is congruent. Question: To prove  ABC   DEF using SSS Post. what must be true?

7 Question: Can I prove  GEF   SQR using SSS?

8 Side-Angle-Side (SAS) Post. Def’n: included  -  formed by 2 sides

9 SAS Post.– If 2 sides & the included  of one  are  to 2 sides & the included  of a 2 nd , then the  ’s are . Ex 3. In class: pg 202 #2-9 Exit Ticket #9 HW: Begin pg 204 #5,6, 10, 12, 14-16, 22-25 Copy proofs in your notes

10 SAS Post. Which pair are SAS? Pair 4 Pair 1


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