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what is the formula for an area of an circle

 Mar 15, 2016
 #1
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A=pie x R 2

 Mar 16, 2016
 #2
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\(a=\pi\times{r}^{2}\)

 

\(a=area\)

 

\(\pi=pi\)

 

\(r=radius\)

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 Mar 16, 2016
 #3
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The cucumfrence of a circle divided by the diamiter=pi-3.14

 Mar 16, 2016

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