

1. 
Find the area of a circle with a diameter of 42 inches. Round to the nearest tenth. 


A. 
1385.4 cm^{2} 
B. 
1809.6 cm^{2} 


C. 
5541.8 cm^{2} 
D. 
2770.9 cm^{2} 


Hint 


2. 
Find the length of the radius of a circle with an area equal to 145 square feet. Round to the nearest tenth. 


A. 
13.6 ft 
B. 
46.2 ft 


C. 
6.8 ft 
D. 
3.8 ft 


Hint 


3. 
The Carillo family has a circular swimming pool with a diameter of 15 feet. Find the area of the pool cover to the nearest tenth. 


A. 
176.7 ft^{2} 
B. 
94 ft^{2} 


C. 
353.4 ft^{2} 
D. 
706.9 ft^{2} 


Hint 


4. 
Find the area of a circle with radius 14 mm. Round your answer to the nearest tenth. 


A. 
153.9 mm^{2} 
B. 
1934.4 mm^{2} 


C. 
615.8 mm^{2} 
D. 
44 mm^{2} 


Hint 


5. 
Find the length of the diameter of a circle with area 523 cm^{2} to the nearest tenth. 


A. 
7.3 cm 
B. 
51.6 cm 


C. 
25.8 cm 
D. 
12.9 cm 


Hint 


