Congruence Triangles

Which of the following is not a valid reason to prove congruent triangles?

• ASA

• SAS

• SSS

• AAA

Are the triangles congruent, if yes, why?

• SSS

• SAS

• ASA

• Not Congruent

Are the triangles congruent, if yes, why?

• SAS

• ASA

• SSS

• Not Congruent

Are these triangles congruent?

• Yes, by AAS

• Yes, by SAS

• Yes, by ASA

• No, this is the SSA one!!

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

How are the triangles congruent?

• ASA

• AAS

• SAS

• SSS

Which Triangle Congruence Criteria do the triangles meet?

• ASA

• SAS

• SSS

If ∆DEF ≅ ∆ACB, then the part of ∆ACB that corresponds to angle F is :

• Angle A

• Angle B

• Angle C

• None of these

What is the correct choice for Statement 5?

• SAS

• Definition of Congruence

• Prove

• CPCTC

What is the "statement" for step 3 of the proof? 

• ∡EDA≅∡DCB

• ∡AED≅∡BEC

• DE=CE

• ∡AED≅∡CED