Solve. Use the fact that the radius of the Earth is 3960 miles and 1 mile = 5280 feet.A guard tower at a state prison stands 86 feet tall. How far can a guard see from the top of the tower? Round to the nearest tenth of a mile.
A. 11.4 mi
B. 16.1 mi
C. 5600.3 mi
D. 829.8 mi
Answer: A
Mathematics
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