# What Is the Formula to Find the Circumference of a Circle?

The formula to find the circumference of a circle is pie multiplied by the diameter or 2pr where r is the radius. The distance around a circle is considered the circumference which is denoted by the symbol C in mathematics.
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 The formula for the circumference of a circle is. 2. πr. or. πd. C = pi x d (pi x diameter) or: C = 2 x pi x r (2 times pi times radius) (Pi or. π. is approximately 3.1416) http://wiki.answers.com/Q/What_is_the_formula_for_...
 How to find the circumference of a circle

First here are some geometry basics:
Circumference is the distance all the way around a circle.
 Mathulon, our resident mathmagician says the formula to http://www.chacha.com/question/what-is-the-formula...
 If you already have a given diameter,-The line that cuts the circle in half, then you have everything you need! Make sure the line goes all the way from one end of the circle to the http://www.ehow.com/how_4748215_circumference-circ...
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To work out the circumference of a circle, you should first measure the diameter of the circle and then apply the formula for finding the circumference of a circle ...
The circumference of a semi circle with a radius of 6 is 18.84. The formula to find the circumference of a circle is 2*r*pi. To find the circumference of a semi ...
There are two different formulas that you can use to find the circumference of a circle. The easiest way is to multiply the radius by two. To find the radius ...