

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


A. 
22 in. 
B. 
44 in. 


C. 
28 in. 
D. 
88 in. 


Hint 


3. 
Sara's mother, Shenequa, is making Sara a cake for her birthday. She wants to put a border of blue icing around the cake. How long does it need to be if the cake has a radius of in.? Use . 





A. 
33 in. 
B. 
in. 


C. 
in. 
D. 
15 in. 


Hint 


4. 
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. 
194.78 mm 
B. 
3019.07 mm 


C. 
34.14 mm 
D. 
97.39 mm 


Hint 


5. 
Find the circumference of a circle with diameter 4 ft. 


A. 
12.57 ft 
B. 
25.13 ft 


C. 
7.14 ft 
D. 
50.27 ft 


Hint 


