An ecologist is conducting a research project on breeding pheasants in captivity. She first must construct suitable pens. She wants a rectangular area with two additional fences across its width, as shown in the sketch. Find the maximum area she can enclose with 864 m of fencing A. The length of the shorter side of the larger rectangular area is__m and the length of the longer side of the larger rectangular area is___ m OR B. The length of each side of the larger rectangular area is the same and measures ___m The largest total area that can be enclosed is ___