# ________________________ Per:________ Date:_____________

```________________________
Geometry: Chapter 7 Test Review
Per:________
Date:_____________
1. On a blueprint, the scale indicates that 8 cm represent 13 feet. What is the length of a room that is
9.6 cm long and 6 cm wide on the blueprint?
2. Figure
. Name a pair of corresponding sides?
Solve the proportion.
3.
n6 n5

3
4
4.
5.
6. A model is built having a scale of 1 : 15,000. How high would a 20,800-ft mountain be in the
1
3
7. The length of a rectangle is 9 inches and the width is 2 inches. What is the ratio, using whole
2
4
numbers, of the length to the width?
8. Determine whether the figures are similar.
6.6
3
1.8
3
6.6
1.8
Not drawn to scale
For problems 9 and 10:
a) State the postulate or theorem that determines the triangles are similar.
b) Then find the value of x.
9.
10.
)
x
5
13
9
)
24
&gt;
8
2
Not drawn to scale
&gt;
x
Not drawn to scale
Solve for x
11.
8.3
x
4.9
))
))
17.7
Not drawn to scale
12.
x
3
6
Not drawn to scale
Find the geometric mean of the pair of numbers.
13. 80 and 5
15.
14. 2 and 9
Find the length of the altitude drawn. The triangle is not drawn to scale.
8
17
16. ABCD ~ WXYZ. AD = 12, DC = 6, and WZ = 33. Find YZ. The figures are not drawn to scale.
X
B
W
A
Y
C
D
Z
17. Given:
. Find the length of
. The diagram is not drawn to scale.
A
9
P
27
B
Q
12
C
Determine whether the triangles are similar. If so, write a similarity statement and the