Source:
size(400, 400);
c1 = circle(100, 100, 32);
c2 = circle(300, 250, 32);
c3 = circle(c1.center |- c2.center, 32);
draw(c1);
draw(c2);
draw(c3);
draw(line(c1.east, c2.north).bend_left);
draw(line(c1.south, c3.north));
draw(line(c3.east, c2.west));
draw(text("x", c1.center));
draw(text("y", c2.center));
draw(text("z", c3.center));
Output:
