Circumference of a circle is 2πr (two x Pi x the radius of the circle)
Pi is usually taken as 3.14 for simple calculations - see here http://en.wikipedia.org/wiki/Pi for a longer determination of Pi.
The radius is half the diameter.
Thus, a circle with a diameter of 6cm has a circumference of 18.84cm
The circumference of a circle with a diameter of 6cm is about 18.85cm
The circumference of a circle = 2*pi*radius or diameter*pi
If the diameter of a circle is 69mm then the circumference is: 216.8mm (diameter x pi = circumference).
The circumference of a circle if the diameter is 12cm is 37.7cm
The circumference of a circle 14' in diameter is about 43.98'
The circumference of a circle with a diameter of 6cm is about 18.85cm
The circumference of a circle = 2*pi*radius or diameter*pi
It is: 2 to 3 respectively
If the diameter of a circle is 69mm then the circumference is: 216.8mm (diameter x pi = circumference).
Diameter of a circle = circumference/pi
Diameter of a circle = circumference/pi
The circumference of a 13.5 diameter circle is: 42.41(diameter x pi = circumference).
If a circle has a circumference of 8 the diameter is: about 2.546 (circumference divided by pi = diameter).
A ≈ 28.27cm2
The circumference of a circle if the diameter is 12cm is 37.7cm
The circumference of a circle 14' in diameter is about 43.98'
The circumference of a circle that has the diameter of 8 is: 25.1