Pygame vector handling?

[Downright Trows]

I'm trying to pass a vector for the pygame function pygame.transform.rotate The only issue is that this doesn't work and I'm in grade 10 and haven't done the trig unit yet :L 

Does anyone know a workaround? here is my code if it will help http://pastebin.com/FZQB5eux
here is a link to the pygame transform function http://www.pygame.org/docs/ref/transform.html
Thank you anyone who is kind enough to attempt to help me.