A forest ranger can see for a distance of 12 miles from a firetower. How many square miles can he observe?
distance = r = 12 miles
How many square miles can he see?
for this we calculate area , so
area = π * r^2 = 3.14 * (12)^2 = 3.14 * 144 = 452.16 square miles.
Hence, he can see 452.16 square miles from the tower.
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