Congruent Triangle Proof Review

Are these triangles congruent?

• Yes, by AAS

• Yes, by SAS

• Yes, by ASA

• No, this is the SSA one!!

Are these triangles congruent?

• Yes, by AAS

• Yes, by SAS

• Yes, by ASA

• No, this is the SSA one!!

Use the congruence statement to find the missing part of the statement

What is the correct values for x and y?

• x = 40, y = 35

• x = 35, y = 40

• x = 12, y = 30

• x = 30, y = 15

Fill in the missing proofs.

• Transitive Property, SAS(Side-Angle-Side)

• Reflexive Property, SAS(Side-Angle-Side)

• Reflexive Property, Vertical Angles Thm.

• Transitive Property, SSS(Side-Side-Side)

Are these triangles congruent?

• Yes, by ASA

• Yes, by SAS

• Yes, by AAS

• No, this is the SSA one!! (We don't say bad words in Geometry)

Are these triangles congruent?

• Yes, by ASA

• Yes, by SAS

• Yes, by AAS

• No, this is the SSA one!! (We don't say bad words in Geometry)

Are these triangles congruent?

• Yes, by SAS

• No they are not congruent

• Yes, by SSS

• Not enough information to know for sure

Are these triangles congruent?

• Yes, by AAS

• No they are not congruent

• Yes, by ASA

• Not enough information to know for sure

Which is the correct congruency statement?

• ∠ACB ≅ ∠ DFE

• ∠ BAC ≅ ∠ FDE

• ∠CAB ≅∠FED

• ∠ABC ≅ ∠ DEF