Install flooring first.
Jambs and casing next, the two side pieces cut to the angle of the wall.
For the last piece that is going to lay on an angle I would use the next taller base width and cope the two ends. Rip the bottom at an angle and remove just enough stock so the two tops of the baseboard meet at the top.
Jambs and casing next, the two side pieces cut to the angle of the wall.
For the last piece that is going to lay on an angle I would use the next taller base width and cope the two ends. Rip the bottom at an angle and remove just enough stock so the two tops of the baseboard meet at the top.