If you know the circumference, the ration of the diameter to the circumference is π, so diameter = circumference/π If you have the radius, diameter = 2 x radius
To get the diameter d is to divide the circumference C by pi. d = C / pi
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
Circumference = diameter*pi
to calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. the you have circumference!
If you know the circumference, the ration of the diameter to the circumference is π, so diameter = circumference/π If you have the radius, diameter = 2 x radius
Multiply the diameter by Pi as the formula Pi x d = Circumference. Where d stands for diameter.
To get the diameter d is to divide the circumference C by pi. d = C / pi
You can either measure it, or calculate it if you know the diameter (radius = diameter / 2), or the circumference (radius = circumference / (2pi)).
If by "it" you mean a circle, once you know the diameter, you can calculate its radius, its circumference, and its area.
Circumference = diameter*pi
to calculate circumference you find a circles radius or diameter. you do diameter times pi or radius times 2 times pi. the you have circumference!
Circumference = Pi * diameter
The circumference is the diameter x 2.
pi times diameter = circumference
pi*diameter = circumference Rearrange the formula so as the diameter is the subject of the formula: diameter = circumference/pi diameter = 7/pi = 2.228169203
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. :)