4.2 Similar Polygons

Find the scale factor.

• 4:1
• 1:3
• 2:1
• 7:3

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

Find the ratio of the perimeters.

• 4:1

• 1:3

• 2:1

• 7:3

 $\Delta NOP\ \sim\ \Delta WXY$ 
What is  $NP$  ?

• 4.8

• 30

• 6

• 10

Tags

CCSS.HSG.SRT.A.2

 $\Delta NOP\ \sim\ \Delta WXY$ 
What is  $m\angle Y$  ?

• 58

• 49

• 73

• 90

Tags

CCSS.HSG.SRT.A.2

 $\Delta JKL\ \sim\ \Delta QRS$ 
Find the value of z.  

• 2

• 1

• -6

• 90

Tags

CCSS.HSG.SRT.A.2

Determine if the triangles are similar. Justify.

• Yes, SAS.
• Yes, AA.
• Yes, SSS.
• No, not similar.

Tags

CCSS.HSG.SRT.B.5

Determine if the triangles are similar. Justify your answer.

• Yes, SAS

• Yes, AA

• No, not similar

• Yes, SSS

Determine if the triangles are similar. Justify your answer.

• Yes, SAS

• Yes, AA

• No, not similar

• Yes, SSS