Download Similarity Review

Name
Class
Date
Practice 7-2
Similar Polygons
Are the polygons similar? If they are, write a similarity statement, and give
the similarity ratio. If they are not, explain.
2.
X
A
6
5
12
10
R
Q
7
Y
20
—
3
Z
20
—
3
A
3.
4
4
S 3
T
5
B
14
B
4.
J
8
C
K
S
8
8
8
M
M
8
120
8
60
8
R
B
16
5
3
A
6. X
K
4
Y
?
10. MN
IJ = JK
9
9
L
4
4
N
21
M
W
4
6
M
Z
J
IJ = HK
12. MN
?
K
N
M
9. N ?
HI
11. HK
= LM
?
6
35
20
N
8. K ?
Z
C
LMNO M HIJK. Complete the proportions and congruence statements.
7. M ?
3
5
N
C
U
Y
K
12
8
120
60
L
5.
T
5
X
3
All rights reserved.
1.
L
O
I
H
C
13.
14. P
Q
G
5 ft
A
6 ft
L
3.3 ft
B
E
x
3 in.
F
S
G
15.
1.5 cm
Z
4 cm
W
K
x
H
M
Y
X
R
8 in.
16. J
x
F
M
5 in.
15 m
L
x
O
P
6m
S 9m
N
Q
R
10 cm
E
G
kWXZ M kDFG. Use the diagram to find the following.
Z
17. the similarity ratio of WXZ and DFG
18. mZ
21. mG
2
19. DG
22. mD
Lesson 7-2 Practice
20. GF
23. WZ
3
W
37
4
X
D
6
F
Geometry Chapter 7
© Pearson Education, Inc., publishing as Pearson Prentice Hall.
Algebra The polygons are similar. Find the values of the variables.
Name
Class
Date
Practice 7-3
Proving Triangles Similar
Explain why the triangles are similar. Write a similarity statement for
each pair.
1. A
2. P
B
9
15
L
20
12
X
M
Q
R
A
4. M
3.
X
12
Q
4
M
8
6. A
B
B
All rights reserved.
X
30
J
C
X
130
20
B
W
16
5. A
4
P
A
30
2 A
Y
C
B
R
N
Z
C
Algebra Find the value of x.
7.
8.
9
15
x
5
© Pearson Education, Inc., publishing as Pearson Prentice Hall.
10
x
11
8
9.
12
12
6
x
7
10.
11.
12
4
42
12.
4
15
17
8
x
10
3
x
x
12
14
8
13. Natasha places a mirror on the ground 24 ft from the base of an oak
tree. She walks backward until she can see the top of the tree in the
middle of the mirror. At that point, Natasha’s eyes are 5.5 ft above
the ground, and her feet are 4 ft from the image in the mirror. Find
the height of the oak tree.
Geometry Chapter 7
x
5.5 ft
4 ft
24 ft
Lesson 7-3 Practice
3