diameter x pi
The diameter is 14 / 3.141592654 = 4.4563384 inches.
The formula is pi multiplied by the diameter
circumference = pi*100mm
circumference = pi*diameter so diameter = circumference/pi = 19.1 metres.
If the diameter is known, don't bother measuring the circumference.Simply multiply the diameter by 'pi'.
You get it by multiplying the radius by 2 or dividing circumferance by 3
you multiplay the radius by 2 or divide the circumferance by 3
What is 27 X 3.14? 27 pi
36/pi = 11.4591559 inches
Circumference = (pi) x (diameter) = 14 pi = 43.9823 inches (rounded)
Either pi times the diameter or pi times twice the radius (which is the diameter)