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• > Video Four: How to Find the Circumference?
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# Video Four: How to Find the Circumference?

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Author: Shelly Hicks

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Tutorial

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## Circumference

Key Ideas:

Circumference is the distance around a circle (it is like the perimeter of the circle)

To estimate the circumference:

we would use C = 3 X diameter or C = 6 X radius

To find an better or more exact value for circumference we use:

Circumference = 3.14 X diameter

OR

Circumference = 3.14 x 2 x radius