18,480 feet.
6 million sq ft = 0.2152 sq mi 1 sq mi = 27,878,400 sq ft
1 mi = 5,280 ft 3 mi = 15,840 ft (3 x 5,280)
32,736 ft or 33 x 10^3 ft
3mi is how many ft 15840
43
3 mi 27 ft equals 2 mi 43 ft
3 miles=15,840 feet
12 1/3 yards
Multiply 5,280 (the number of feet in a mile) by 3
8500 ft / 5280 ft/mi = 1.61 mi
Approx. 3.52083 ft., or just over 3 1/2 ft.