How to add a Region to Graphics?

[djmpark (David J M Park Jr)]

Try this:

RegionDifference[Disk[{1, 0}, 1], Disk[{1.5`, 0}, 0.75`]];
R = DiscretizeRegion[%];
Graphics[{LightBlue, MeshPrimitives[R, 2], Orange, Circle[{1, 0}, 1], 
  Blue, Circle[{1.5`, 0}, 0.75`]}]

The MeshPrimitives will convert Discretized Regions into Graphics primitives.

You can get a handy little palette I did for the Geometry routines here:

Geometry Palette