Side Side Side Triangle Similarity

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

The Side-Side-Side Similarity (SSS ~) Theorem states if the corresponding sides of two triangles are _____________________, then the triangles are _________________.

• proportional; similar

• similar, proportional

• congruent; congruent

• equal; equilateral

Find the missing length.

• 21

• 18

• 16

• 24

Which proportion would be correct in order to solve for x.  

• x/10 = 15/30

• x/10 = 45/30

• x/10 = 15/45

• x/10 = 30/15

• similar by SSS~

• similar by AA~

• not similar

• similar by SAS~

• ΔCDE

• ΔDCE

• none of these

• ΔDEC

• ΔEDC

• ΔCED

Complete the similarity statement below.

ΔUVW~Δ​ (a)  

• UQR

• QUR

• URQ

• QRU

• RUQ

• RQU

• similar by SSS~

• ΔQNP

• similar by AA~

• similar by SAS~

• not similar

• ΔPNQ

• ΔNPQ

• ΔNQP

• none of these

• similar by SSS~

• none of these

• similar by AA~

• similar by SAS~

• ΔLMK

• not similar

• ΔMLK

• ΔKLM

• ΔMKL

• ΔKML

• similar by SSS~

• similar by AA~

• not similar

• similar by SAS~

• ΔSTR

• ΔTRS

• none of these

• ΔTSE

• ΔRST

• ΔSRT

• similar by SSS~

• none of these

• similar by AA~

• similar by SAS~

• ΔLMK

• not similar

• ΔMLK

• ΔKLM

• ΔMKL

• ΔKML