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Math Help: Circumference of circles

Refresh your competency in the various areas of Mathematics.

CIRCUMFERENCE OF CIRCLES

In this module, you can study how to calculate the distance around a circle (its circumference) if you know its diameter.

 

The above video from Khan Academy provides an excellent introduction to understanding the radius, diameter and circumference measures of a circle.

Did you know?

The circumference of a circle is not equal to the length of two diameters.

A circle's circumference divided by its diameter is the same for every circle.  (It's pi, or 3.14)


Study and practice

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Use these search terms to find additional resources:

how to find circumference
circumference measure

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