Just this year I have put away my old cad software and began using Solidworks.  I love it.  Periodically though I find what used to be very simple in my old program difficult in solidworks.  Once I do finally learn how to do it in Solidworks I realize that indeed Solidworks is much better for the task.  In this case I can't figure out how to do a "3 point rotation".  Please refer to the picture inserted to see what I'm trying to accomplish.  The procedure outlined below is copied from my old cad program.  The 2nd inserted picture is what Im trying to accomplish in my sketch.  I want to rotate several selected entities (in light blue) around the point shown with the x and Y axis arrows showing.  The rotation angle is to be determined by the included angle between pt A and B