Similarity Ratio Triangle

Pick the correct Similarity Statement for the Triangles Shown.

• ΔABC ~ ΔXYZ

• ΔACB ~ ΔYZX

• ΔCAB ~ ΔZXY

• ΔABC ~ ΔZXY

Given the two triangles are similar, which side is corresponding to PR?

• DE

• EF

• DF

• FD

Find the scale factor (common ratio) between the two triangles.

• 3/2

• 1

• 9/4

• 4/9

Which side is corresponding to 7?

• 15

• 18

• 21

• 5

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

• AA

• SSS

• SAS

• Not similar

Complete the similarity statement below.

ΔUVW~Δ​ (a)  

• UQR

• QUR

• URQ

• QRU

• RUQ

• RQU

These two triangles are ​ (a)   by ​ (b)  

• similar

• not similar

• SSS

• SAS

• AA

• not enough information

∆ABC is ​ (a)   ∆DEF, because angle A is ​ (b)   to angle E and the sides are​ (c)  

• not similar

• congruent

• not proportional

• similar

• a dilation of

• proportional

Which side is corresponding to 18?

• 5

• 6

• 7

• 15

What ratio would I use for the side 5 and its corresponding side?

• 15/5 = 3

• 21/5

• 18/5

• 7/5