# Chapter 11 Practice Test

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```					Geometry Connections                                                    Name_________________________
Chapter 11 Practice Test                                                Date ______________

1.   For the "dart board" at the right, what is the probability                       8"
2"            3"

5"

2.   If you wander through the maze at right, which room                               B
A
are you most likely to wander into? Justify your
answer by calculating the probabilities of wandering
into each room.
C

3.   For each dart board, calculate the probability of hitting the lower left section if the radius of each section is
0.4.

1               1
1

1                              1
4.   Use the spinner at right, and determine the following
probabilities:
a) P(A)                             b)      P(A or C)

c) P(D)                              d)        P(E)

5.   Use the spinner at right to find:

a) P(red)                            b)        P(blue)

c) P(green)                  d)      P(yellow)

6.   Determine the probability of hitting the shaded parts.

a)                                                              b)
5

6                  5                                            8

4        4
8

7.
Bombers, in attempts to wipe out munitions
areas, drop bombs inside triangular shaped
fields. In one case the field is an
equilateral triangle with each edge                      1 km            1 km
measuring 1 km, with a munitions building at
1
each vertex. If a bomb lands within      km
3                        1 km
of the building, it destroys the building.                                      1       1
What is the probability of destroying a
building?
1
8.             Zoe, your favorite sheep, is tethered at point A with a rope 15                      60'
feet long. (It seems a group of wild geometry students are
out to get her so she must stay tied up and in the pasture.)       20'
30'       A
What is her grazing area?                                                            •
10'
30'

20'

30'

9.       Simplify each expression.

(x + 2)(x + 2)                                    x2 + 4x
a)                                                c)
(x - 3)(x + 2)                                    2x + 8

x2 + 5x + 6                                              x+9
b)                                                d)   Does       = 9 ? Explain.
x
x2 + x - 6

10. Find the total surface area, and volume of each shape. All units are cm.
a)                                             b)                                                       c) Base is a square
8
6
9
4

10

```
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