Name: 
 

9-5


Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 
If the edge of a cube is 2x, the volume of the cube is:
a.
8x3
b.
4x3
c.
2x3
d.
4x2
 

 2. 
If the radius of a circle is tripled, then the area of the circle is multiplied by:
a.
27
b.
9
c.
3
d.
6
 

 3. 
If the edge of a cube is doubled, the volume is multiplied by:
a.
2
b.
3
c.
6
d.
8
 

 4. 
Two similar cones have heights 5 and 20.  What is the ratio of their volumes?
a.
1:16
b.
1:64
c.
1:4
d.
4:16
 

 5. 
The ratio of the volumes of two similar pyramids is 27:8.  Find the scale factor of the pyramids.
a.
81:24
b.
27:8
c.
9:4
d.
3:2
 



 
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