Geometry Unit 3 Review

What are the five ways to prove triangles congruent?

• SSS, ASA, AAS, SAS, HL
• SSS, SSA, HL, AAS, SAS
• SAS, SSA, HL, AAS, SSS
• HL, SAS, SSA, SSS, ASA

Are these triangles congruent? If so, state the rule which you used to determine congruence.

• Yes by ASA
• Yes by AAS
• Yes by SSA
• Not congruent

Congruent by

• SSS
• SAS
• ASA
• AAS

Are these triangles congruent?

• Yes, by AAS
• Yes, by SAS
• Yes, by SSS
• No, this is the SSA one!!

What style of proofs have we been working on?

• flow chart proofs

• paragraph proofs

• two-column proofs

• we've never worked on proofs... ever

How many columns are in a two-column proof?

• depends on the proof

• 5

• as many as you want

• 2

Which angles are vertical angles?

Are these Vertical Angles?

• yes

• no

What angle corresponds to $\angle1$ ?