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The circumference of a circle is the length around it. The circumference of a circle can be calculated from its diameter using the formula: Circumference of a circle = 2*pi*radius or
Circumference of a circle = pi*diameter
where r is the radius and d is the diameter of the circle, and � (the Greek letter pi) is defined as the ratio of the circumference of the circle to its diameter.
(the numerical value of pi is 3.141 592 654 589 793...).
d * pi
or 2 * r * pi
Where d is diameter and r is radius and pi = 3.14159
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Formula for circumference of a circle?
Circumference of a circle:Formula= diameter * pi (approx 3.14)
What is the formula to find the circumference of a circle with the diameter given?
Circumference = (diameter) multiplied by (pi)
What is the formula for finding the radius of a circle when you have the circumference?
Divide the circumference by 2*pi because 2*pi*radius = circumference
What is the circumference of an 18 cm circle?
The circumference is about 56.548 cmUse this formula for future calculations: diameter x 3.1416 (Pi) = circumference
The formula for circumference of a cirle is?
pi*radius squared
