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What is the diameter of a circle with an area of 169π square feet?

 Mar 14, 2019
 #1
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For a circle,

 

A=pi x r^2

 

169pi=pi x r^2

 

169 = r^2

 

r = sqrt(169)=13

 

So, diameter is double the radius and the answer is 2 x 13 = 26.

 Mar 14, 2019
 #2
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TY so much I was stuck on that for so long

 Mar 14, 2019

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