Biggest Area Possible?

There is a barn that is 150ft in length and 40ft in width. and i need to build a fence with 110ft. of fencing material. I only have two fence post so two of the sides need to be connected to sides of the barn. What is the biggest possible area i can make with the material I have.(The fence doesn't need to go around the bard, I just need it to put some pigs in)