

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





A. 
132 mm 
B. 
126 mm 


C. 
66 mm 
D. 
21 mm 


Hint 


2. 
Find the circumference of a circle whose radius is 1.25 yards. Use the key on a calculator. Round to the nearest tenth. 


A. 
7.9 yd 
B. 
3.9 yd 


C. 
6.4 yd 
D. 
4.8 yd 


Hint 


3. 
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. 
29 yd 
B. 
24 yd 


C. 
19 yd 
D. 
10 yd 


Hint 


4. 
Find the circumference of a cookie with a diameter of in. Use . 


A. 
in. 
B. 
in. 


C. 
in. 
D. 
in. 


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. 
22 inches 
B. 
154 inches 


C. 
44 inches 
D. 
17 inches 


Hint 


