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if a=452.16 sq. ft, what is r  USE 3.14 FOR PI

Guest May 7, 2017
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I assume this is the area of a circle.....if so, we have

 

452.16 =  pi *  r^2

 

452.16  =  3.14 * r^2        divide both sides by 3.14

 

452.16 / 3.14   =  r^2       

 

144  = r^2                     take the positive square root of both sides

 

12 ft  =  r

 

 

cool cool cool

CPhill  May 7, 2017

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