Triangle Congruence (Days 1 and 2)

Can we PROVE the triangles are congruent?

• Yes, by SSA ≅

• Yes, by AAA ≅

• Yes, by SSS ≅

• Yes, by SAS ≅

• No, not enough information

Can we PROVE the triangles are congruent?

• Yes, by SSA ≅

• Yes, by AAA ≅

• Yes, by SSS ≅

• Yes, by SAS ≅

• No, not enough information

Can we PROVE the triangles are congruent?

• Yes, by SSA ≅

• Yes, by AAA ≅

• Yes, by SSS ≅

• Yes, by SAS ≅

• No, not enough information

Can we PROVE the triangles are congruent?

• Yes, by SSA ≅

• Yes, by AAA ≅

• Yes, by SSS ≅

• Yes, by SAS ≅

• No, not enough information

Which of the following are NOT sufficient to prove two triangles are congruent? Choose ALL that apply.

• SSS ≌

• AAA ≌

• SSA ≌

• SAS ≌

Vertical angles are congruent.

• True
• False

Use the congruency statement ∆EFI ≌ ∆HGI to answer the following:

∠F ≌

• ∠H

• ∠I

• ∠G

∆ABC ≅ ∆XYZ

Which of the following is true?

• BA ≅ YX

• AB ≅ YZ

• ∠A ≅ ∠Z

• ∠A ≅ ∠Y

What should be your first reason in a two-column proof?

• Prove

• Given

• Reason

• Statement

Name the corresponding angle or side.

• A
• B
• C
• D