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The area of a circle is 55.95cm2.
Find the length of the radius rounded to 2 DP.

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 May 19, 2020
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The area of a circle is 55.95cm2.
Find the length of the radius rounded to 2 DP. 
 

 

A  =  π r2 

 

r2  =  55.95 / 3.1416  =  17.8094 

 

r  =  sqrt(17.8094)  =  4.2201  =  4.22 cm  

 

I had to assume that DP meant decimal places. 

.

 May 19, 2020
edited by Guest  May 19, 2020
edited by Guest  May 19, 2020
edited by Guest  May 19, 2020
edited by Guest  May 19, 2020

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