

1. 
The diameter of a child's circular wading pool is feet. What is the circumference of the pool? Use . 


A. 
feet 
B. 
feet 


C. 
feet 
D. 
3 feet 


Hint 


2. 
Find the circumference of the circle. Use for . 





A. 
126 mm 
B. 
66 mm 


C. 
21 mm 
D. 
132 mm 


Hint 


3. 
Pizzas are sold according to the length of their diameters. What is the circumference of a 14inch pizza? 


A. 
88 in. 
B. 
28 in. 


C. 
22 in. 
D. 
44 in. 


Hint 


4. 
Find the circumference of a circle with diameter . Use . 


A. 

B. 



C. 

D. 



Hint 


5. 
Find the circumference of a circle whose radius is 31 mm. Use the key on a calculator and round your answer to the nearest hundredth. 


A. 
34.14 mm 
B. 
97.39 mm 


C. 
3019.07 mm 
D. 
194.78 mm 


Hint 


