AA Similarity Criteria

How do these triangles appear to be similar?
(Hint: Look for non-labeled parts!)

• AA

• SAS

• SSS

• Not Similar

Tags

CCSS.HSG.SRT.B.5

Determine whether the triangles are similar.

• SSS

• AA

• SAS

• not similar

Tags

CCSS.HSG.SRT.B.5

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

Tags

CCSS.HSG.SRT.A.2

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4

Tags

CCSS.7.G.A.1

If ∠BAC = 17° and ∠CED = 17° are the two triangles, ΔBAC and ΔCED similar? If so, by what reason?

• yes, by AA similarity

• yes, by SAS similarity

• yes, by SSA similarity

• not possible to tell

Tags

CCSS.HSG.SRT.B.5

The triangles are similar. State the reason and complete the similarity statement.

• $\Delta PQR\sim\Delta TUV$ by $AA\sim$

Answer explanation

The order of the points matter! Make sure congruent angles are in the same place.

Tags

CCSS.HSG.SRT.B.5

State if the two triangles are similar and the rule that applies.

• Not Similar

• Similar by SAS

• Similar by AA

• Similar by SSS

Tags

CCSS.HSG.SRT.B.5

Are these triangles similar?

• No, they are not similar

• Not Enough Information 

• Yes, similar by AA~ 

Tags

CCSS.HSG.SRT.A.2

Complete the Proof above.

• AA

• SSS

• SAS

• HL

Tags

CCSS.HSG.SRT.B.5

Determine the relationship between the triangles.

• AA∼

• SAS∼

• SAA∼

• Not necessarily
  similar

Tags

CCSS.HSG.SRT.B.5