The approximate radius of the circle in feet is 14.5
Solution:
Given, a tile artist is placing tiles in a circular mosaic pattern and the area of the circle is 658 square feet,
We have to find what is the approximate radius of the circle in feet?
The area of a circle is found with the formula

where "y" represents 3.14 and r is radius. So now, according to given information,

Hence, the radius of the given circle is 14.5 feet approximately