Similar Triangles Scale Factor

Find missing side

• 5
• 7
• 9
• 11

What is the measure of x?

• 12
• 15
• 6
• 9

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10
• 12
• 15
• 18

Are the triangles similar?

• Yes
• No

Find missing side

• 5
• 7
• 9
• 11

Complete each proportion.
CB / DM  =  AC / ?

• BM
• MA
• BC
• AD

Complete each proportion.
AB / BM  =  ? / CD

• BC
• AC
• MD
• MC

Choose the similarity statement for the triangles.

• ΔMNL ∼ ΔOPQ
• ΔNOM ∼ ΔPQL
• ΔLMN ∼ ΔPQO
• ΔMLN ∼ ΔPQO

Triangle SQR is similar to triangle SPT. Which segment corresponds to segment QR?

• A) SP
• B) ST
• C) PR
• D) PT

Which of the following is NOT true about similar figures?

• A) Similar figures always have the same shape.
• B) Similar figures always have the same size.
• C) Similar figures always have corresponding angles that are equal.
• D) Similar figures always have corresponding sides that are proportional.