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 old fence O What dimensions will require the least amount of fencing if no fencing is needed along the existing fence O grazing area O 300 yards by 300 yards 300 yards by 600 yards y 600 yards by 600 yards 200 yards by 900 yards