There are 2 formulas for finding the circumference of the circle.If the radius diameter is given,we use the formula �d.When the radius is given,we use the formula 2�R.
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But there are also other formulae for when the area is given, or the length of an arc and the angle subtended at the centre or on the circumference are known. Plus many more. Basically, the question is too poorly specified to find a single answer.
Also, the above formulae assume that the shape is a circle. But it could be an ellipse, for example.
Circumference of a circle:Formula= diameter * pi (approx 3.14)
Circumference = (diameter) multiplied by (pi)
Divide the circumference by 2*pi because 2*pi*radius = circumference
The circumference is about 56.548 cmUse this formula for future calculations: diameter x 3.1416 (Pi) = circumference
pi*radius squared
circumference=r2pi
Because:- circumference/diameter = pi and when the formula is rearranged circumference = pi*diameter
The formula for the circumference of a circle is the same, whatever its diameter. Circumference = pi*diameter.
use the formula pi*diameter = circumference and the formula diameter = 2*radius and combine them 2pi*radius = circumference now you have a formula that you can just plug you numbers into. if you have 3 as your radius, then this is how to find the circumference 2pi*3=circumference 6.28*3=circumference 18.84=circumference
There is no circumference of a cone, but, we only do the circumference of the circle. the formula for the circle is pi times D. D= Diameter
They both are a formula
The formula for the circumference of a circle is C = 2πr, where C is the circumference and r is the radius of the circle.
Formula: diameter = pi / circumference
Formula of Circumference of a circle: 3.14*Diameter of the circle. You could also do: 3.14*3.14*radius.
the formula is: circumference= p*diameter
Area = (Circumference)2/(4*pi)
the circumference of a circle is pi time the diameter