How to cut hand rail to fit porch post that is in an angle.?

Question:My husband has run into a snag while building the porch to our girls' playhouse. The porch posts that line each side of the stairs are turned to fit an angled porch roof. Therefore, the hand rail will not hit the porch post flush. Because the post is turned the rail meets the post at a corner. My husband can't figure out how to cut the hand rail to fit the post corner. He can't figure the angle of the cut or the v notch he must cut to meet it correctly. Any suggestions?

Answers:
cut a template off of the spot you are trying to fit into, than trim the fiting end into the shape of the template.