Posted by cantcode on Sep 22, 2013; 8:15pm
URL: https://forum.librecad.org/hatch-tp5708843p5708846.html

that's more of a workaround but here is what you could try:
#1 Snap->Snap Intersection
#2 Modify->Divide => select the first arc and then press on the first intersection (of both arcs)
                           => select the first arc and then press on the second intersection
                           => select the second arc and then press on the first intersection
                           => select the second arc and then press on the second intersection
Now select both created arc segments and try to use hatching on them.