

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


A. 
feet 
B. 
feet 


C. 
feet 
D. 
feet 


Hint 


2. 
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. 
10 yd 
B. 
29 yd 


C. 
24 yd 
D. 
19 yd 


Hint 


3. 
Find the circumference of the circle. Use 3.14 for . 





A. 
50.27 mi 
B. 
7.14 mi 


C. 
25.12 mi 
D. 
12.56 mi 


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. 
34.14 mm 
B. 
3019.07 mm 


C. 
97.39 mm 
D. 
194.78 mm 


Hint 


5. 
Aisha and McKinley are building a robot. It has wheels that have a radius of 7 inches. They need to know the distance the robot will travel for each revolution of the wheels. How far is this distance? 


A. 
154 inches 
B. 
44 inches 


C. 
22 inches 
D. 
17 inches 


Hint 


