Similar Polygons and Proportions

Solve the proportion.

• -3 or -4

• 3 or 4

• -3 or 4

• 3 or -4

Write a proportion to find how many points a student needs to score on a test in order to get the given percent:
The test is worth 12 points.
The test score is 75%.

• p/12=100/75

• p/100=12/75

• p/12=75/100

• p/75=12/100

If two polygons are similar, then the corresponding side lengths are ___________.

• congruent

• similar

• equal

• proportional

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

• x = 1

• x = 3

• x = 9

• x = 5

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

• x = 20

• x = 12

• x = 5

• x = 4

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

• x = 12

• x = 3

• x = 40

• x = 4

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

• 30

• 28

• 33

• 20

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

• 23

• 12

• 57

• 35

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

• 13

• 11

• 3

• 6

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

• 11

• 9

• 5

• 6