Similarity of Triangles Rules

Are triangle ABC and triangle DEF similar?

• No

• Yes

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

• SSS

• AA

• SAS

• not similar

What similarity theorem would prove that these triangles are similar?

• SAS∼

• SSS∼

• AA∼

• Side Splitter

Which of the following rules prove triangles similar? Check all that apply.

• SSS

• SSA

• AA

• SAS

State the postulate that proves these triangles are similar.

• SSS

• AA

• SAS

• Not similar

The pair of figures is similar. Find the missing side.

• x = 12

• x = 3

• x = 40

• x = 4

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

State if the triangles in each pair are similar. If so, state how you know they are similar.

• Yes, AA Similarity

• Yes, SSS Similarity

• Yes, SAS Similarity

• Not Similar

Pick the correct Similarity Statement for the Triangles shown.

• ΔCAB ~ ΔDEF

• ΔABC ~ ΔDFE

• ΔABC ~ ΔDEF

• ΔBCA ~ ΔDEF

All angles in similar figures are congruent.  

• True

• False