Postulates on Congruent Triangles

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

• SSA

• ASA

• SAS

• SSS

Name the postulate, if possible, that makes the triangles congruent.

• SAS

• ASA

• AAS

• Not Possible

∠A ≅∠?

• ∠B

• ∠E

• ∠D

• ∠F

If ∆LMK ≅ ∆LMT, then
∠K ≅ ____

• T

• ∠T

• ∠M

• ∠L

ΔEDF ≅ Δ____

• ABC

• CAB

• BAC

If ΔDEF ≅ ΔRST, then we can conclude that ∠T ≅ ____.

• ∠F

• ∠E

• ∠D

• EF

What is statement #1?

• BC≅DC

• AC≅EC

• BC≅DC, AC≅EC

• ∆BCA≅∆DCE

What is statement #2?

• ∠ABC≅∠EDC

• ∠BCA≅∠DCE

• BC≅CD

• ∠E≅∠A

What is Statement?

• ∠MNL ≌ ∠ONP

• MN ≌ ON

• N ≌ N

• MO ≌ OM

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

• AD=DA

• AN = AH

• HD=ND

• HD=DN