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Worksheets

Theorems of Similar Polygons

Total questions: 27

Worksheet time: 7hrs 45mins

Name
Class
Date
1.

Are the triangles similar?

a)

Yes

b)

No

2.

What is the similarity statement for the triangle pair?

a)

ΔXYZ~ΔNEW

b)

ΔXZY~ΔNWE

c)

ΔZYX~ΔENW

d)

ΔYZX~ΔNWE

3.

Review the picture. Find the missing side measurement in the picture using a proportion.

a)

w = 18 m

b)

w = 6 m

c)

6 m

d)

w = 0.16 m

4.

If ABCDE ∼ GHJDF, then∠B is congruent to _______

a)

∠H

b)

∠D

c)

∠F

d)

∠J

5.

The two right triangles below are similar. What is x, the missing side length in triangle DEF?

a)

3.75

b)

9.75

c)

10

d)

12

6.

Two objects that are the same shape but not the same size are _______.

a)

Congruent

b)

Vertical

c)

Similar

d)

Complementary

7.

The figures are similar. Find the scale factor of the smaller figure to the larger figure.

a)

2:5

b)

5:3

c)

3:5

d)

2:3

8.

The figures are similar. Find the scale factor of the smaller figure to the larger figure.

a)

5:6

b)

6:5

c)

4:7

d)

2:3

9.

Solve for x. The two figures are similar.

a)

x = 6

b)

x = 9

c)

x = 7

d)

x = `0

10.

Solve for x. The two figures are similar.

a)

x = 8

b)

x = 2

c)

x = 4

d)

x = 6

11.

Solve for x using the given scale factor. The figures are similar.

a)

x = 11

b)

x = 32

c)

x = 5

d)

x = -11

12.

Solve for x using the given scale factor. The figures are similar.

a)

x = -10

b)

x = 13

c)

x = 10

d)

x = 8

13.

Are the two figures similar?

a)

yes

b)

no

14.

Are the two figures similar?

a)

yes

b)

no

15.

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

a)

x = 12

b)

x = 3

c)

x = 40

d)

x = 4

16.
a)

1/24

b)

29

c)

28

d)

x

17.

Find the perimeter of PQRS.

a)

164

b)

36

c)

82

d)

72

18.

Identify the value for z.

a)

90°

b)

360°

c)

122°

d)

180°

19.

To find the height of a very tall pine tree, you place a mirror on the ground and stand where you can see the top of the pine tree. How tall is the tree?

a)

144 feet

b)

72 feet

c)

36 feet

20.

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

a)

x = 20

b)

x = 12

c)

x = 5

d)

x = 4

21.

What side corresponds with AB?

a)

BC

b)

FE

c)

DE

d)

FD

22.

Find the missing side of the large triangle, then, find the PERIMETER of the large triangle.

a)

the missing side is 12, the perimeter is 24

b)

the missing side is 12, the perimeter is 36

23.

Solve for X.

a)

2 ft

b)

3 ft

c)

4 ft

d)

6 ft

24.

Solve for X.

a)

2 ft

b)

3 ft

c)

4 ft

d)

6 ft

25.

Are the following similar? Why or why not?

a)

Yes

b)

No, the corresponding angles are not equal.

c)

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

26.

Solve the proportion.

a)

p=31.3

b)

p=308

c)

p=924

d)

p=532

27.

Solve the proportion.

a)

q=2

b)

q=9

c)

q=4.5

d)

q=6