

1. 
Find the circumference of a circle with a diameter of feet. Use . 


A. 
feet 
B. 
feet 


C. 
feet 
D. 
feet 


Hint 


2. 
The diameter of a child's circular wading pool is feet. What is the circumference of the pool? Use . 


A. 
feet 
B. 
3 feet 


C. 
feet 
D. 
feet 


Hint 


3. 
Find the circumference of a circle whose radius is 1.25 yards. Use the key on a calculator. Round to the nearest tenth. 


A. 
4.8 yd 
B. 
7.9 yd 


C. 
3.9 yd 
D. 
6.4 yd 


Hint 


4. 
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. 
15 in. 
B. 
in. 


C. 
33 in. 
D. 
in. 


Hint 


5. 
Find the circumference of the circle. Use 3.14 for . 





A. 
12.56 mi 
B. 
25.12 mi 


C. 
7.14 mi 
D. 
50.27 mi 


Hint 


