Afarmer is building a fence to enclose a rectangular area consisting of two separate regions. the four walls and one additional vertical segment (to separate the regions) are made up of fencing, as shown below. a dashed and shaded rectangle is cut into two equal halves by a dashed vertical line. a dashed and shaded rectangle is cut into two equal halves by a dashed vertical line. if the farmer has 162 feet of fencing, what are the dimensions of the region which enclose the maximal area