Plug in PI(3.14...) R^2 where in this case R is equal to 8.
34,503 miles
Circumference = pi*d, so Circumference = 16*pi
The diameter of the earth is 12,742km
The circumference is 16*pi inches
A circle 16 meters in diameter has a circumference of 16*pi or about 50.26 meters.
The circumference of a 16-foot circle is 50.24 feet.
diameter = circumference/pi.
It has a circumference of 50.3 inches.
Circumference = pi * diameterC = 3.14159 * 16 = 50.26544 inches
A circle with a radius of 16 inches has a circumference of 100.53 inches.
The circumference of a circle with a diameter of 16 km is: 50.3 km
The circumference of a circle with a diameter of 16 centimeters is 50.27 cm