The radius of a circle with an area of 1,808.64 square miles is: about 24 miles (23.994 miles).
pi square miles.
The radius is half the diameter so the radius is ALWAYS half the diameter. Just because a number is odd doesn't mean you can't take half of it. For example if a diameter is 5 miles, then the radius is 2.5 miles.
103,000 square kilometers = 39,768.5 square miles.
Alameda County has about 738 square miles of area.
20 nautical miles
24 miles
If you have a circular area with a 50-mile radius, the area of the circle is approximately 7,854 square miles (rounded).
A circular area of 5 miles radius covers 50265.5 acres(to 1 dp) Area = pi*radius2, which with radius in miles will give you area as 78.53982 square miles, then multiply by 640, since there are 640 acres in 1 square mile.
square miles and radius have different units
Radius is the square root of 1808.64/pi = about 24 miles
If the surface area of the moon is 14,650 square miles then its radius would be 34.144 miles.
A circle that encloses 1,100 square miles of area has a radius of 18.712 miles .
Radius = 4.068 miles (to 3 dp)
A circle with a radius of seven miles has an area of ~153.938 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
It is a roughly circular area with radius about 15 miles.