A farmer plans to fence a rectangular grazing area adjacent to an existing fence. The grazing area must contain 180,000 square yards in order to provide enough grass for the horses. y old fence grazing area X yWhat dimensions will require the least amount of fencing if no fencing is needed along the existing fence? O 300 yards by 600 yards O 200 yards by 900 yards O 600 yards by 600 yards O 300 yards by 300 yards