Divide the circumference by the value of Pi - that will give you the diameter.
Circumference = pi*d. So d = Circumference/pi
Circumference of a circle: pi times diameter
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.
diameter = circumference/pi
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. :)
Circumference = pi*d. So d = Circumference/pi
Circumference of a circle: pi times diameter
Take the circumference divided by pi to find the diameter and divide the diameter by two to find the radius.
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.
to find the diameter of a circle when you only have the circomference you: divide the circomference by pi (approx. 3.14)
If the circumference or diameter is given then you can find the radius or simply measure the distance from the centre of the circle to the circumference.
Diameter = Circumference/pi
diameter = circumference/pi
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!
To find the circumference of a circle, you need only know the radius or diameter of the circle. The circumference of a circle is calculated as 2 x Pi x radius OR Pi x diameter. Pi is approximately 3.1415926.