a tank liner that can hold 45 cubic feet of water has a square base that measures 3 feet by 3 feet. the tank liner is made from lead sheet that weighs 4 pounds per square foot. a sketch of the tank liner is shown in the figure

Need to finish my juan wants to build a greenhouse in his back yard. he needs to maximize the ratio of floor area to structure volume in order to provide the most room for plants while minimizing the area to be heated. find the description of the structure that best meets juan’s criteria. a.) a hemisphere with a diameter of 12 feet b.) a cube with a side length of 12 feet c.) a cone with a diameter of 12 feet and a height of 10 feet d.) a square pyramid with a base side length of 12 feet and a height of 9 feet