Find the Scale Factor Proportions

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

• 5

• 14

• 8

• 13

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

• 5

• 7

• 8

• 12

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

• 11

• 9

• 5

• 6

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

Find the missing length. The triangles in each par are similar.

• 51

• 36

• 49

• 29

Find the missing length. The triangles in each par are similar.

• 46

• 78

• 84

• 93

What is the scale factor from ΔDEF to ΔABC?

• 2

• 3/2

• 2/3

• 1/2

Solve the equation for x:

• 17

• 16

• 15

• 14

Complete each proportion.
AB / BM  =  ? / CD

• BC

• AC

• MD

• MC

The pair of figures is similar. Find the missing side.

• x = 20

• x = 12

• x = 5

• x = 4