Similarity Triangles and Polygons

Are the following similar? Why or why not?

• Yes

• No, the corresponding angles are not equal.

• No, the ratios of the corresponding sides are not equal.

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

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

The triangles are similar. Solve for x.

• 9

• 6

• 4

• 11

The triangles are similar. Solve for x.

• 9

• 14

• 4

• 5

The triangles are similar. Solve for x.

• 5

• 8

• 13

• 11

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

What is the value of X?

• X=4

• X=6

• X=3

• X=2

All corresponding sides are proportional (same ratio) in similar figures.

• True

• False