Scale Factor and Similarity Practice

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger. (smaller on top)

• 3 : 10

• 1 : 2

• 7 : 10

• 4 : 5

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger. (smaller on top)

• 7 : 9

• 1 : 6

• 1 : 3

• 1 : 2

The polygons in each pair are similar. Find the scale factor of the smaller figure to the larger. (smaller on top)

• 1 : 6

• 5 : 6

• 1 : 2

• 7 : 9

The polygons in each pair are similar. Find the missing side length.

• 30

• 28

• 33

• 20

Solve for x. The polygon in each pair are similar.

• 6

• 10

• 12

• 11

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

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

Solve for x. The triangles in each pair are similar.

• 5

• 7

• 8

• 12

The polygons in each pair are similar. Find the missing side length.

• 23

• 12

• 57

• 35