He he, very funny
Yeah, I did a lot of work on this too (3 pages of work actually). My friend tried to solve it as well and we both got negative areas (-70 and -83). I'm going to read through your work and also try and solve it again, but it a more organized fashion.
Also, I edited it in later, the side length of the pentagon is 1 (to make it easier checking your work)
Did you solve the area of the green area? (Sorry, I was trying to look around. What did you happen to get?)