The area of the circle above is 1,519.76 units squared. what is the circumference

In order to find the circumference, we first need to find the radius.  We have the area, so we can find the radius.  We set up this equation:



We begin by dividing both sides by pi.

483.76 = 

Next, we take the square root of both sides to get the radius.

r = 22.

Next, we plug this into the formula for the circumference, 2 pi r



So, the circumference of this circle is 138.23 units.