Given a circle with a diameter of 4, the circumference is: 12.6 (diameter x Pi = circumference).
Diameter = circumference divided by pi. (3.14159)
Divide the circumference by pi (3.141592......) to get the diameter.
Circumference = diameter*pi
If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)
Given a circle with a diameter of 4, the circumference is: 12.6 (diameter x Pi = circumference).
If you only have a given diameter you have to multiply the diameter by Pi (3.142) or 3.14 and then you get the circumference!
Diameter of a circle = circumference/pi
Diameter = circumference divided by pi. (3.14159)
Divide the circumference by pi (3.141592......) to get the diameter.
Circumference = diameter*pi
If you mean the diameter and radius of a circle given the circumference it is:- diameter = circumference/pi radius = circumference/(2*pi)
Diameter = circumference/pi Radius = circumference/2*pi
The diameter of the circle equals the circumference divided by Pi (3.14159....).
Circumference = (diameter) multiplied by (pi)
Circumference of a circle = (pi) x (diameter)
Divide the circumference by pi (about 3.1416). The result is the circle's diameter.