find the radius and times it by pie 3.1415 and so on.
The circumference of a 31.4-meter diameter circle is about: 98.6 meters.
A 0.5 meter-diameter circle has a circumference of about 1.57 meters.
A circle with a radius of 1 meter has a circumference of 6.28 meters.
The circumference of a 9.5-meter diameter circle is: 29.85 meters. (C = d x Pi)
The circumference of a circle with a diameter of 18 metres is 56.5 metres, approx.
A circle 16 meters in diameter has a circumference of 16*pi or about 50.26 meters.
The diameter of a circle with a 3-meter circumference is: 0.9549 meters.
if a circle has an 18 meter diameter, then it has a 9 meter radius the circumference of a circle is 2(pi)r so the c. would be 2(pi)(9) which is 18pi. (another way to think of circumference is the diameter times pi)
Diameter of circle: 12/pi = 3.8197 meters to four decimal places
it is 1254.90222
3.1416 metres
About 34.56m