<PRE><B>Question 1141717</B>
Here are the steps:  I encourage you to try it on your own:&lt;br&gt;

You know the area of the circle, and that is {{{ pi*r^2 }}}  
So {{{ pi*r^2 = 36pi }}}  == (dividing both sides by {{{pi}}}) ==&gt; {{{ r^2 = 36 }}}&lt;br&gt;

You can find r by taking the square root.&lt;br&gt;

Now envision the circle in the square, how long is one side of the square, in terms of the radius of the circle, r ?   Hint: there is a simple relationship between length of each side and the radius of the circle. &lt;br&gt;

Since that value is one side, the perimeter is just 4 times that number.

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