Take your diameter, divide by 2 to find the radius (r), and then plug that number into this equation: 2πR (2 x pi x radius)
Divide the circumference by the value of Pi - that will give you the diameter.
If you know the diameter and need the circumference you times the diameter of the circle by 3.14 also known as pie. That is how you get the circumference by only knowing the diameter. :)
Divide the circumference by 3.14159265 (3.14 for rough approximation) to find the diameter of a circle.
Circumference of a circle: pi times diameter
circumference = diameter x pi (pi = 3.14159265 or 3.14 for rough approximation)
Circumference = pi*d. So d = Circumference/pi
It is not. Knowing its radius or diameter will do just as well.It is not. Knowing its radius or diameter will do just as well.It is not. Knowing its radius or diameter will do just as well.It is not. Knowing its radius or diameter will do just as well.
The equation for finding the circumference of a circle is diameter times pi so reverse it to circumference divided by pi which leaves the diameter. The diameter is twice as big as the radius so divide the diameter by 2 and you will find the radius.
Take the circumference divided by pi to find the diameter and divide the diameter by two to find the radius.
You cannot.
to find the diameter of a circle when you only have the circomference you: divide the circomference by pi (approx. 3.14)
Okay finding circumference from knowing the radius right? The radius is equal to half the diameter and circumference is equal to pi * diameter. So double the radius and multiply it by 3.14 then you will get the circumference!