i not sure by diddlybob
6.28 cm
Approximately 0.637cm
2cm; the diameter of a circle is twice its radius.
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).
A circle with a circumference of 11.25 has a diameter of: 3.581
The circumference of a circle with a diameter of 25 is: 78.54
If the diameter of a circle is 9 the circumference is: 28.3
If a circle has a diameter of 14, the circumference is: 43.98.
If a circle has a diameter of 2.25, the circumference is: 7.069
If the circumference of a circle is 17.27, the diameter is: 5.5