Denise has two dogs that like to roam. She is tired of soaking wet dogs coming into her house, her neighbors are tired of unwelcome visitors, and she doesn’t want to worry about them getting hit by a car. It was these three issues that convinced her to purchase a wireless pet fence. The fence sends out a wireless signal in a circle with a radius of up to 90’. Where should Denise plug in the wireless station so that her dogs have the largest possible range but stay within her property lines, away from the river and away from the road?