pen will 16) A farmer wants to construct a rectangular pigpen using 500 m of fencing. The be built next to an existing stone wall, so only three sides of fencing need to be constructed to enclose the pen. What dimensions should the farmer use to construct the pen with the largest possible area? A) 127 m (perpendicular to wall) by 246 m (parallel to wall) B) 126 m (perpendicular to wall) by 248 m (parallel to wall) C) 125 m (perpendicular to wall) by 250 m (parallel to wall) D) 130 m (perpendicular to wall) by 240 m (parallel to wall)