You are building a flowerbed around a beautiful oak tree. It is in the shape of a regular hexagon with a depth of 2 feet. The tree with is in the center of the flowerbed has a circumference of 4 feet. The perpendicular distance from the outer edge of the tree to the flower bed is 3 feet. You need to know how much dirt you need to buy to fill the flowerbed. Each bag is 1 cubic yard. Use 3.14 as PI to help solve the problem. You may need to use conversion for the bags of dirt.