area circle = π × radius² = π × (400 miles)² = 160000π sq mi ≈ 502655 sq mi
A 1 mile radius circle covers approximately 3.14 square miles, which is equivalent to 2,008 acres.
The question is meaningless. A radius is not a measurement unit. A radius can be thousands of miles or thousandths of a mile.
A mile is the length of a line, square miles are the measure of area, typically of a square or rectangle
A square mile is composed of 1 mile by 1 mile, so there is 1 mile in a square mile.
The area of a circle with a 6-mile radius is approximately 113 square miles.
2
283,131 sq miles
If you have a circular area with a 50-mile radius, the area of the circle is approximately 7,854 square miles (rounded).
3.1415265389792384264338327950288419716939937510.....
It is 502655 sq miles, approx.
A circle with a mile radius has an area of pi sq miles.
There are pi*r^2 = 2827 square miles, approx.
The area of a circle with a 25-mile radius is about 1963.5 square miles. This calculation is based on the formula A = πr^2, where A is the area, π is approximately 3.14159, and r is the radius of the circle.
The formula for the area of a circle is: 3.14 (pi) times the radius squared. A circle with a 40 mile radius would have an area of 3.14 x 40 x 40 = 5024 square miles.
A circle that encloses 1,100 square miles of area has a radius of 18.712 miles .
Area of a circle = pi R2 = 9 pi = 28.27 square miles (rounded)