title: Geofencing radius distribution/ratio across multiple geofences
body: <p>I understand that this problem might be simple geometry, but Im using specific shapefiles for a geographical area and looking for a specific gis solution (hopefully code).</p>
  
  <p><a href="https://i.stack.imgur.com/UvwrT.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/UvwrT.png" alt="enter image description here"></a></p>
  
  <p>Essentially Id like to find the area of black that covers each separate geographical bounds. What percentage covers the red area, blue area, and then green?</p>
  
  <p>I have coordinates of the center, as well as shapefiles (.shp). The radius is known. No preference on library other than it being open source (R and Python).</p>