Similar Figures and Corresponding Parts

What is the scale factor from the triangle to the left to the triangle on the right?

• 2

• 3/2

• 2/3

• 1/2

What is the scale factor from ΔDEF to ΔABC?

• 1/2

• 7/3

• 2

• 10/3

Two objects that are the same shape but not the same size are _______.

• Congruent

• Vertical

• Similar

• Complementary 

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

• A

• B

• C

• D

Tell whether the two figures are similar. Explain your reasoning.

• Yes, similar because they are the same shape and side lengths are proportional.

• No, not similar because they are the same shape, but side lengths are not proportional.

• Yes, same shape

• No, different sizes

Figure ABCDE is similar to figure VWXYZ. Which proportion must be true?

• 
• 
• 
• 

Figure JKLM is similar to figure PQRS.

Which proportion must be true for

these figures?

• 
• 
• 
• 

Line AB corresponds to ?

• Line GE

• Line HG

• Line FE

• Line HE

The parts of congruent figures that match are called (a)  

• similar

• scale factor

• correspomnding parts

• similar polygons