I'm pretty sure there are over 100 near ground zero. Sounds like a ton, but it really is a ton. That's reality.
The question is meaningless. A radius is not a measurement unit. A radius can be thousands of miles or thousandths of a mile.
The area of a circle with a 6-mile radius is approximately 113 square miles.
five
A circle with a mile radius has an area of pi sq miles.
2
500 miles!
3.1415265389792384264338327950288419716939937510.....
2433 acres, approx.
half a mile or 2,640 feet is the radius of one mile at 5,640 feet total
A 15 mile radius implies 30 miles across.
If you have a circular area with a 50-mile radius, the area of the circle is approximately 7,854 square miles (rounded).
One Ground Mile = 5280 ft , One Air or Nautical Mile = 6076.115 ft