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Circumference of a circle

In geometry, circumference is the distance around a closed curve; for example, a circle. It is a special kind of perimeter. The length of the circumference of a circle is often written as C, with:

C= \pi d

where d is the diameter of the circle. view more...


 KidzTube            
Arc Length As Fraction Of Circumference

Arc Length As Fraction Of Circumference
Math Antics - Circles, Circumference And Area

Math Antics - Circles, Circumference And Area
Circumference of a Circle

Circumference of a Circle
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