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www.ask.com/math/formula-circumference-circle-7e508134800bdd34

The formula for

The distance around a circle is called the circumference.

Sources:

en.wikipedia.org/wiki/Circumference

[edit].

www.mathgoodies.com/lessons/vol2/circumference.html

math.about.com/library/blcircle.htm

The Diameter is equal to twice the radius.
The radius is a line segment that begin from the centre and touches any point on the circle .
In circles the AREA is equal to 3.14 (p) times the radius (r) to the power of 2.
Thus the formula looks like... More »

www.khanacademy.org/math/basic-geo/basic-geo-area-perimeter/basic-geo-area-circumference/v/circumference-from-area

Here we find the

www.wikihow.com/Calculate-the-Circumference-of-a-Circle

How to Calculate the

www.mathplanet.com/education/pre-algebra/more-about-equation-and-inequalities/calculating-the-circumference-of-a-circle

The distance around a rectangle or a square is as you might remember called the
perimeter. The distance around a

www.aaamath.com/geo612x4.htm

An interactive math lesson to calculate the

www.virtualnerd.com/tutorials/?id=PreAlg_11_01_0010

Then you can use the formula for the

Popular Q&A

Q:
Circumferance of a circle .

A:
The circumference of any circle is the irrational number "pi" (very approximately 3.1418) times the diameter of the circle .
Read More »

Source:
www.answers.com

Q:
Circumferance of a circle ?

A:
Distance that billy has travelled = [(pi*d*number of revolutions)/100]m = [(pi*70*130)/100]m = 286m
Read More »

Source:
answers.yahoo.com

Q:
Circumference of the circle ??

A:
http://i2.photobucket.com/albums/y48/xxkrystinaxx9/7_17p.gif In the figure above, both circles have their centers at point O, and point C lies on segment OD. If...
Read More »

Source:
answers.yahoo.com

Q:
Circumference of a circle ..?

A:
You are right. C = d*pi. Either they messed up or there was a 2 that you didn't notice. d = 2r, so C = 2*pi*r. I hope this helps!
Read More »

Source:
uk.answers.yahoo.com