Intro to Triangle Proofs

Determine if the triangles are congruent. If yes, state the theorem.

• yes, SAS
• not congruent
• yes, ASA
• yes, AAS

Tags

CCSS.HSG.SRT.B.5

Which is NOT a test to prove triangles congruent?

• SAA
• SSS
• SSA
• SAS

Tags

CCSS.HSG.SRT.B.5

What is statement #1?

• BC≅DC
• AC≅EC
• BC≅DC, AC≅EC
• ∆BCA≅∆DCE

Tags

CCSS.HSG.SRT.B.5

What is statement #2?

• ∠ABC≅∠EDC
• ∠BCA≅∠DCE
• BC≅CD
• ∠E≅∠A

Tags

CCSS.HSG.SRT.B.5

What is reason #3?

• SAS
• ASA
• SSS
• AAS

Tags

CCSS.HSG.SRT.B.5

What is statement #3?

• HA≌HA

• HA≌AH

• MA≌AM

• MA≌MA

Tags

CCSS.HSG.SRT.B.5

What is statement #3? 

• ∡EDA≅∡DCB
• ∡AED≅∡BEC
• DE≌CE

• ∡AED≅∡CED

Tags

CCSS.HSG.SRT.B.5

What is statement #2?

• AD ≌ AD

• AD ≌ DA

• HD ≌ DN

• HA ≌ AN

Tags

CCSS.HSG.SRT.B.5

What is statement #3?

• AD ≌ DA

• AN ≌ AH

• HD ≌ ND

• HD ≌ DN

Tags

CCSS.HSG.SRT.B.5

What is the justification for the statement?

• reflexive property
• definition of segment bisector

• definition of midpoint

• substitution property

Tags

CCSS.HSG.CO.C.10