Similarity and Right Triangles Review

Give the appropriate theorem or postulate that can be used to prove the triangles similar:

• AA Postulate

• ASA Postulate

• SSS Postulate

• SAS Postulate

Find the value of x.

• 12

• 60

• 64

• 80

• A
• B
• C
• D

What is the scale factor of the dilation from A to B ?

• 2

• 1

• 1/2

• 1/3

Which statement about the triangles at the right is true?

• ΔABC is not similar to ΔADF

• ΔABC is similar to ΔADF

• ∠BAC is not congruent to ∠DAF

• ΔABC is congruent to ΔADF

Are Triangle ABC and Triangle XYZ similar?

• No, corresponding angles are not congruent

• No, corresponding sides are not proportional

• Yes, corresponding angles are congruent

• Yes, corresponding sides are proportional

Which is a correct congruence statement.

• A

• B

• C

• D

Angle N is congruent to Angle ____

(Type the letter only. No spaces or punctuation)

If QRS is the original preimage and UTV is the new image, what is the scale factor?

If the images are not similar, select "not similar"

• 4

• 2

• 1/2

• 1/4

• Not similar.

Give the appropriate theorem or postulate that can be used to prove the triangles similar:

• AA Postulate

• ASA Postulate

• SSS Postulate

• SAS Postulate