Radius is the square root of 1808.64/pi = about 24 miles
The radius is 1.261 miles.
A circle with a mile radius has an area of pi sq miles.
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.
Area of a circle = pi R2 = 9 pi = 28.27 square miles (rounded)
Area of a circle = pi R2 = 16 pi = 50.265 square miles (rounded)
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 = 4.068 miles (to 3 dp)
A circle that encloses 1,100 square miles of area has a radius of 18.712 miles .
The radius is 1.261 miles.
A circle with a radius of 11.5 miles has an area of 415.48 square miles.
A circle with a mile radius has an area of pi sq miles.
64pi (miles square)
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.
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.
In order to do this, you must have the radius in feet.-- Square the radius (multiply it by itself)-- Multiply the answer by 'pi'. (3.142 is close enough)-- The answer is the area of the circle, in square feet.
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