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FAQ

Determine the Area of a Circle

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The area of a circle can be determined by using the following formula:

where d is the diameter of the circle, which is exactly twice the length of its radius (r).
Raduis (r):
The area of the circle is (A):
     

Related Information

The SI Unit of Area

Converter: Area

You can use our area converter to carry out the conversion of area units.
Area Converter
Version 4.0 - Last updated: Sunday, August 16, 2015
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