21120 feet
1 mile = 5280 feet so 4 miles = 4*5280 = 21120 feet.
There are 5280 feet in a mile. That calculates out to 21,120 feet.
0.4 square miles (o.4 mi^2) = 11,151,360 square feet.
17160 feet
3030 feet = 0.573863636 mi.1 mi. = 5,280 feet.
2 miiles equal 3,520 yards and 10,560 feet
15,840 feet
1 mile = 5280 ft; 4 miles = 5280 x 4 = 21,120 ft
5280
15,840 feet in 3 miles
There are 5280 feet in one mile.