32km, i just found it in Wikipedia :)
2005q
If 11.6 km is diameter, then 11.6 * pi = 36.4425 km circumference If 11.6 km is radius, then 11.6 * 2 * pi = 72.8850 km circumference
The circumference of a circle with a diameter of 16 km is: 50.3 km
A circle with a radius of 1.8 km has a circumference of 11.31 km
A circle with a radius of 126 km has a circumference of 791.68 km.
The circumference is about 155609 KM (equitorial).96,685 miles (155,600 km).
Circumference = pi*2.5 = 7.85 km
Circumference of circle: 2*pi*13.1 = 82.30972752 km
40,073 km
Earth's equatorial radius is 6,378 km, so its circumference is 40,074 km (2 x pi x 6378). Dividing its circumference by 360 yields 111.32 km per degree.
circumference of a circle = pi*diameter
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