A rancher plans to fence-in a rectangular corral adjacent to a river for a herd of cattle. The corral must contain 1,584,200 square meters in order to provide enough grass or the herd. No fencing is required along the river. Use calculus to determine the dimensions and of the corral that will require the least amount of fencing. How much fencing is required? The length of the shorter side of the optimal corral is meters long. The length of the longer side of the optimal corral is meters long. The optimal corral requires meters of fencing