I drew a revolved, part, and I started on the wrong plane.  What's the simplest way to fix this WITHOUT redoing everything?  I suppose I could re-draw the sketch from scratch, but if there's a way to salvage what I've already done, I'd sure like to know. I've tried copying the sketch to a new file and rotating it, but I couldn't make that work.  The attached part needs to sit on the top plane, with the cone orientated up away from the top plane.  Anyone have a good idea?