SHOW YOUR COMPLETE SOLUTION Final answer is an integer. Write your answer in digits only. Punctuations, letters and words are not allowed. Solve the problem below. 5 points 10. A cube is inscribed in a sphere 1 unit in diameter, The volume may be expressed as ew. units where / and & are integers. Find the smallest sum of f and a. 11. Three cubical chairs are to be made from a log 5 meters long and 1 meter basal radius. Find the maximum side length of the chair. 12. A 15-cubic feet concrete foundation is to be made from a material whose density is 75 Ib/ft^3. How many pounds of material is needed to build the foundation