Answer:
81.6 meters
Step-by-step explanation:
We know the area of the circle is 530.93 square meters. We use the formula for the area of a circle to find r using inverse operations.
[tex]A=\pi r^{2} \\530.93=\pi r^{2} \\\frac{530.93}{\pi } =\frac{\pi r^{2} }{\pi } \\169.0859=r^{2} \\\sqrt{169.0859}=r\\ 13=r[/tex]
We now know the radius. We can substitute it into the circumference formula to find its value.
[tex]C=2\pi r\\C=2\pi (13)\\C=81.64[/tex]
