

1. 
Find the area of a circle with a radius of 10 millimeters. Round to the nearest tenth. 


A. 
314.2 mm^{2} 
B. 
3,142.0 mm^{2} 


C. 
31.4 mm^{2} 
D. 
314.1 mm^{2} 


Hint 


2. 
Find the area of the semicircle below. Round to the nearest tenth. 





A. 
190.1 m^{2} 
B. 
381.0 m^{2} 


C. 
191.0 m^{2} 
D. 
380.1 m^{2} 


Hint 


3. 
A dog is tied to a leash in the middle of a yard. The leash allows him to play in a circular area that is 804 square feet. How long is the leash? Round to the nearest foot. 


A. 
16 ft 
B. 
14 ft 


C. 
255 ft 
D. 
15 ft 


Hint 


4. 
Find the area of a circle with a diameter of 4 centimeters. Round to the nearest tenth. 


A. 
7.5 cm^{2} 
B. 
70.9 cm^{2} 


C. 
14.9 cm^{2} 
D. 
17.7 cm^{2} 


Hint 


5. 
Find the area of the semicircle below. Round to the nearest tenth. 





A. 
32.2 in^{2} 
B. 
16.1 in^{2} 


C. 
64.3 in^{2} 
D. 
10.1 in^{2} 


Hint 


