

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


A. 
feet 
B. 
feet 


C. 
feet 
D. 
feet 


Hint 


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





A. 
21 mm 
B. 
132 mm 


C. 
66 mm 
D. 
126 mm 


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. 
6.4 yd 
D. 
3.9 yd 


Hint 


4. 
Laura is painting a round floor cloth to resemble a globe for her bedroom floor. She wants to sew seam binding around the edges to keep the cloth from unraveling. If the radius of the cloth is 3 yards, how much binding should she buy? 


A. 
19 yd 
B. 
10 yd 


C. 
29 yd 
D. 
24 yd 


Hint 


5. 
Find the circumference of a cookie with a diameter of in. Use . 


A. 
in. 
B. 
in. 


C. 
in. 
D. 
in. 


Hint 


