Similar Triangles Scale Factor

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?

• SP

• ST

• PR

• PT

Which of the following is NOT true about similar figures?

• Similar figures always have the same shape.

• Similar figures always have the same size.

• Similar figures always have corresponding angles that are equal.

• Similar figures always have corresponding sides that are proportional.

Are the triangles similar?

• Yes

• No

If the scale factor is less than one, the new figure will be

• an enlargement

• a reduction

• a scale factor

• bigger

If the scale factor is greater than one, the new figure will be

• reduction

• enlargement

• scale

• not proportional