

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


A. 
31.4 mm^{2} 
B. 
314.1 mm^{2} 


C. 
314.2 mm^{2} 
D. 
3,142.0 mm^{2} 


Hint 


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





A. 
254.5 mi^{2} 
B. 
63.6 mi^{2} 


C. 
65.8 mi^{2} 
D. 
255.0 mi^{2} 


Hint 


3. 
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. 
17.7 cm^{2} 
D. 
14.9 cm^{2} 


Hint 


4. 
Find the area of the semicircle below. Round to the nearest tenth. 





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


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


Hint 


5. 
The pitching mound on a baseball field has a circular area of 254.47 square feet. Find its diameter. Round to the nearest foot. 


A. 
9 ft 
B. 
18 ft 


C. 
20 ft 
D. 
27ft 


Hint 


