A circular metal tank has a radius of 20 in. If a lid made for tank has the same radius, find the area of the lid in square feet. Use the rules for working with measurements.
A. The area is 34.9 ft 2.
B. The area is 8.73 ft 2.
C. The area is 1,260 ft 2.
D. The area is 4.36 ft 2.
E. The area is 17.5 ft 2.
Answer: B
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