7.3: proofs using triangle congruence theorem 2012 notes.pdfsmartboard 7.3 notes.notebook 3 october...

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Smartboard 7.3 Notes.notebook 1 October 23, 2012 Dec 2110:19 AM 7.3: Proofs Using Triangle Congruence Theorem Oct 236:58 AM Algebra Review Problem: You notice that the number of people that get involved in a flash mob increases exponentially. If 3 people started a flash mob in Grand Central Station, NYC, and every 10 seconds the flash mob doubled, how many people will be in the flash mob after 2 minutes and 40 seconds?

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Page 1: 7.3: Proofs Using Triangle Congruence Theorem 2012 Notes.pdfSmartboard 7.3 Notes.notebook 3 October 23, 2012 Dec 21 10:31 AM When triangles are ≅, their CORRESPONDING parts are congruent

Smartboard 7.3 Notes.notebook

1

October 23, 2012

Dec 21­10:19 AM

7.3: Proofs Using Triangle Congruence Theorem

Oct 23­6:58 AM

Algebra Review Problem: You notice that the number of people that get involved in a flash mob increases exponentially. If 3 people started a flash mob in Grand Central Station, NYC,  and every 10 seconds the flash mob doubled, how many people will be in the flash mob after 2 minutes and 40 seconds?

Page 2: 7.3: Proofs Using Triangle Congruence Theorem 2012 Notes.pdfSmartboard 7.3 Notes.notebook 3 October 23, 2012 Dec 21 10:31 AM When triangles are ≅, their CORRESPONDING parts are congruent

Smartboard 7.3 Notes.notebook

2

October 23, 2012

Dec 21­10:22 AM

Given

GivenGiven

Dec 21­10:22 AM

Given

GivenGiven

Def'n of MidpointASA ≅ Theorem

Page 3: 7.3: Proofs Using Triangle Congruence Theorem 2012 Notes.pdfSmartboard 7.3 Notes.notebook 3 October 23, 2012 Dec 21 10:31 AM When triangles are ≅, their CORRESPONDING parts are congruent

Smartboard 7.3 Notes.notebook

3

October 23, 2012

Dec 21­10:31 AM

When triangles are ≅, their CORRESPONDING parts are congruent due to the CPCF theorem.

Define Isosceles Triangle Base Angles Converse Theorem : 

If  2 ANGLES of a triangle are CONGRUENT, 

then the sides OPPOSITE them are CONGRUENT.

Dec 21­10:34 AM

ME

C

F

D

M is the midpoint of and

Given

Page 4: 7.3: Proofs Using Triangle Congruence Theorem 2012 Notes.pdfSmartboard 7.3 Notes.notebook 3 October 23, 2012 Dec 21 10:31 AM When triangles are ≅, their CORRESPONDING parts are congruent

Smartboard 7.3 Notes.notebook

4

October 23, 2012

Jan 2­1:41 PM

AB=CDBC=AD

GivenGiven

Jan 2­1:43 PM