Proving Triangle Similar by AA, SAS or SSS Theorems

Are the triangles similar? If yes, choose which theorem we would use to prove similarity.

• AA~

• SSS~

• SAS~

• Not Similar

Determine whether the triangles are similar.

• AA

• SAS

• SSS

• Not Similar

Which of the following are triangle similarity theorems?

• SAS

• AAS

• AA

• SSS

• SSA

Which triangles are similar to triangle A?

• B

• C

• Both

• None

Determine whether the triangles are similar by AA~, SSS~, SAS~, or not similar.

• AA

• SAS

• SSS

• Not Similar

Determine whether the triangles are similar.

• AA

• SAS

• SSS

• Not Similar

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

Decide whether the triangles are similar. If so, write a similarity statement.

• ΔABC ~ ΔFED

• ΔABC ~ ΔDEF

• ΔABC ~ ΔDFE

• The triangles are not similar.

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

Give the reason for similarity

• AA

• SAS

• SSS

• Not similar