Radius = 4.068 miles (to 3 dp)
A circle with a radius of seven miles has an area of ~153.938 square miles.
A circle with a radius of 11.5 miles has an area of 415.48 square miles.
64pi (miles square)
Half the square root of the square radius equals the circle radius.
If a circle has area of 400 square units then its radius is: 11.25 units.
A circle with a radius of seven miles has an area of ~153.938 square miles.
The radius of a circle with an area of 1,808.64 square miles is: about 24 miles (23.994 miles).
Radius is the square root of 1808.64/pi = about 24 miles
A circle with a radius of 11.5 miles has an area of 415.48 square miles.
A circle that encloses 1,100 square miles of area has a radius of 18.712 miles .
64pi (miles square)
A circle with a mile radius has an area of pi sq miles.
If the area is a circle and the radius of the circle is 21 miles, the distance around the circle (circumference) is 131.95 miles. The area of that circle is 1,385.4 square miles.
This is the area of a circle with a radius of 100 miles →area = π × radius² = π × (100 miles)² = 10,000π sq miles ≈ 31416 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).
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.
When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.