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A circle with a radius of 4 miles has a circumference of 25.13 miles.
If the area is a circle, the circumference is 0.28 miles.
The circumference of the earth in miles is about 24,901 miles. The diameter is about 7,926 miles.
The circumference of the planets vary. Mercury has a circumference of 9,522 miles. Venus has a circumference of 23,617 miles. Earth has a circumference of 24,889 miles. Mars has a circumference of 13,256 miles.
If the area is a circle with a four-mile circumference, the area in acres is: 814.72 acres.
The circumference of the Earth is approximately 24,000 miles. That would be 2.4 X 10^4
The circumference of Earth at the equator is about 24,874 miles.
24,899 miles is the Equatorial Circumference Equatorial Circumference 40,075 kilometres 24,899 miles
5 miles circumference => an area of 1.99 square miles
Circumference = 34*pi miles
The equatorial circumference of the earth is 24901.45 miles (40075.02 km).
Tres-4 has a radius of about 1.799 that of Jupiter [See related question]