gaokao 2020 Q16

gaokao · China · national-III-arts 5 marks Stationary points and optimisation Geometric or applied optimisation problem
A cone has a base radius of 1 and slant height of 3. The volume of the largest sphere that can be inscribed in this cone is $\_\_\_\_$ .
A cone has a base radius of 1 and slant height of 3. The volume of the largest sphere that can be inscribed in this cone is $\_\_\_\_$ .