Fencing in Frances

Susie Joe wants to build a fence for her potbelly pig, Frances. She has $96.00 to spend on fencing, which costs $1 per foot. If she wants to make as much room for Frances as possible inside the fence, what should the dimensions be?

Extension: If Susie Joe wants to keep the fence close to the house and use the side of the house for one of the sides of the fence, what would the dimensions of the fenced in area be?