Module 1 Lesson 10.notebook

1

September 22, 2016

Aug 13­12:09 PM

Module 1 Lesson 10 Unknown Angle Proofs- Proofs with construction

HWp60 #2

Do Now:

Module 1 Test Lesson 1-11

Tuesday September 27th

1. Make a plan for Opening Exercise on p56 Prove b = e

Sep 21­9:07 AM

p56

Statement Reason

PLAN: alternate interior angles

1. AB ll DE & BC ll EF 1. Given

2. <z = <e 2. If parallel lines are cut by a transversal then alternate interior angles are equal in measure

3. <z = <b 3. If parallel lines are cut by a transversal then alternate interior angles are equal in measure

4. <e = <b 4. Substitution property of equality

Module 1 Lesson 10.notebook

2

September 22, 2016

Sep 20­7:47 PM

Statement Reason

Statement Reason

Sep 21­9:11 AM

wv

p56

Statement Reason

PLAN: corresponding angles

1. AB ll DE 1. Given

2. Auxiliary lines m, m ll AB ll DE

2. Drawn

3. <v + <w = <z 3. Angle Addition postulate

4. <v = <x <w = <y

4. If parallel lines are cut by a transversal then corresponding angles are equal in measure

5. <z = <x + <y 5. Substitution Property of Equality

Module 1 Lesson 10.notebook

3

September 22, 2016

Sep 21­9:11 AM

p57

Statement Reason1. AB ll DE 1. Given

2. Auxiliary lines m, m ll AB ll DE

2. Drawn

3. <v + <w = <z 3. Angle Addition postulate

4. <v = <x <w = <y

4. If parallel lines are cut by a transversal then corresponding angles are equal in measure

5. <z = <x + <y 5. Substitution Property of Equality

Sep 21­9:11 AM

p57

Module 1 Lesson 10.notebook

4

September 22, 2016

Sep 21­9:11 AM

p58

PLAN:Statement Reason

1. AB ll CD & BC ll DE 1. Given

2. <1 = <3 2. If parallel lines are cut by a transversal then alternate interior angles are equal in measure

3. <2 = <3 3. If parallel lines are cut by a transversal then alternate interior angles are equal in measure

4. <1 = <2 4. Substitution property of equality

alternate interior angles

Sep 21­9:11 AM

p58

Statement Reason

PLAN:

1. AB ll CD & BC ll DE 1. Given

2. If parallel lines are cut by a transversal then same side interior angles are supplementary

2. <1 + <d = 180

3. <1 = <b 3. If parallel lines are cut by a transversal then same alternate interior angles equal

4. <1 + <d = 180 4. Substitution Property of Equality

alternate interior angles same side supplementary

Module 1 Lesson 10.notebook

5

September 22, 2016

Sep 21­9:11 AM

p59

Statement Reason

PLAN:

Sep 21­9:07 AM

p59Statement Reason

PLAN:

Module 1 Lesson 10.notebook

6

September 22, 2016

Sep 21­4:27 PM

p60

Statement Reason