Similarity of Polygons

The triangles are similar. Solve for x.

• 9

• 6

• 4

• 11

The triangles are similar. Solve for x.

• 9

• 14

• 4

• 5

Calculate the value of the scale factor between the 2 triangles

• 2.5

• 3

• 3.5

• 4

Solve for x. The two figures are similar.

• x = 6

• x = 9

• x = 7

• x = `0

The triangles are similar. Solve for x.

• 5

• 8

• 13

• 11

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

• reduction

• enlargement

• scale

• not proportional

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

State if the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statement.

• A

• B

• C

• D

State if the triangles in each pair are similar. If so, state how you know they are similar and complete the similarity statement.

• Not Similar