Similar Triangle Proportions and Parts of Similar Triangles

Which triangles are similar to triangle A?

• B

• C

• Both

• None

If two figures are similar, the corresponding sides are ______________.

• equal

• congruent

• proportional

• none of these

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

• AA

• SAS

• SSS

• Not Similar

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

• AA

• SAS

• SSS

• Not Similar

• SAS
• SSS
• AA
• not enough information to prove similarity

What is the similarity statement for the triangle pair?

• ΔXYZ~ΔNEW

• ΔXZY~ΔNWE

• ΔZYX~ΔENW

• ΔYZX~ΔNWE

Find the value of x using proportions.

• a

• b

• c

• d

Find the missing length.

• 21

• 18

• 16

• 24

When proving these triangles similar, what would you write in for the missing reason?

• Math

• Corresponding sides are proportional

• Corresponding sides are congruent

• SSS similarity postulate

Are the triangles similar?

• Yes

• No