Warm Up 09.30.11Week 7

If I drink water, then I stay hydrated.

1) What portion of the conditional statement is underlined in blue? Which portion is underlined in red?

Geometry2.5 Day 2

I will justify statements about congruent segments.

Properties of Segment Congruence

Reflexive AB ≅ AB

Symmetric IF AB ≅ CD, then CD ≅ AB

Transitive IF AB CD, and CD EF, then AB EF ≅ ≅ ≅

Theorem 2.1

JK ≅ JL

Step Reason

Ex 1

LK = 5 Given

JK = 5 Given

LK = JKTransitive Property

of equalityDefinition of Congruent

Segments

Given:

Prove: LK ≅ JL

J

K

L

LK ≅ JK

JK ≅ JL Given

LK ≅ JL Transitive Property of equality

LK = 5

JK = 5Given:

Given:

Step Reason

Ex 2

LE = MR and EG = RA Given

P2

P2

Given:

Prove: LG = MA

E

L

G

RA

M

LE + EG = LG

MR + RA = MA

LE = MR

Given: EG = RA

Step Reason

LE = MR and EG = RA Given

P2

P2 LE + EG = LG

MR + RA = MA

LE + EG = MA Substitution

Property of Equality

LG = MA Substitution

Property of Equality

Given:

Prove: LG = MA

E

L

G

RA

M

LE = MR

Given: EG = RA

Ex 2

Like # 12 on quiz

Turn in Assignment: Handout 2.5 B

Turn in Notebook

Quiz Week 7: Handout (SHOW STEPS if needed! )You may use your notebook for the quiz.

No Homework today!

No Talking During the Quiz