

1. 
Find the circumference of the circle. Use for . 





A. 
66 mm 
B. 
126 mm 


C. 
21 mm 
D. 
132 mm 


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. 
15 in. 
D. 
in. 


Hint 


4. 
Find the circumference of the circle. Use for . 





A. 
8.4 m 
B. 
16.5 m 


C. 
86.6 m 
D. 
33 m 


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. 
194.78 mm 


C. 
3019.07 mm 
D. 
97.39 mm 


Hint 


