Infinity miles. Pi is irrational so its decimal representation has an infinite number of non-repeating digits.
It would stretch for 24,901.55 miles.
880
4,400
1000 miles
560 pi, about 1760 miles
1000 miles
Circumference = 60 miles ie 2*pi*r = 60 miles, where r is the radius. So r = 30/pi = 9.55 miles (approx) and then area = pi*r2 = 286.48 sq miles.
Earth's equatorial diameter = 7,926 miles.Circumference = pi D = 7,926 pi = 24,900 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)
Area of a circle = (pi) R2 = (21)2 pi = 1,385.4square miles (rounded)
Aprox. 2300 miles in length