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Area and Circumference of a circle
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Calculators Home
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This page determines the area of a circle given the radius:
Values
r:
Examples
r=100
Try
r=10
Try
Calculation
Radius:
10.00 units
Formula:
\(Area=\pi.r^2\)
Area:
314.16 units
2
Formula:
\(Circumference=2\pi.r\)
Circumference:
62.83 units