Solve Proportions and Similar Triangles

Find the missing length indicated.

• 30

• 25

• 45

• 50

Find the missing length.

• 21

• 18

• 16

• 24

Find the missing side using proportions.

• 45

• 44

• 42

• 32

Find the missing side using proportions.

• 51

• 45

• 74

• 50

Find the missing side using proportions.

• 4

• 5

• 3

• 6

Find the value of x using proportions.

• 10

• 5

• 4

• 7

Find AE

• 12.5

• 18

• 11.75

• 13

The triangles are similar, solve for the question mark.

• 8

• 12.5

• 18

• 24

To measure the distance across a pond, a surveyor locates points A, B, C, D, and E as shown.  What is AB to the nearest meter?

• 10

• 12

• 15

• 18

Complete the proportion to solve for x:

?/20 = 9/15

• x

• x + 20

• x - 20

• 20 - x