Answer:
10.083 
since 1/12 is .0833333333 and so on, it’s shortened 
Step-by-step explanation:
 
        
                    
             
        
        
        
<h2>
Answer:</h2>
cylinder 
<h2>
Step-by-step explanation:</h2>
Archimedes was a brilliant mathematician. This man rose the formula of the volume of a sphere by comparing this shape to a cylinder. The volume of a sphere is hard to calculate by comparing this object to a cube. So Archimedes imagined cutting a sphere into two halves, called hemispheres.  So an hemisphere gave him a flat surface, which is easier to work with. Therefore, if he'd find the volume of a hemisphere, then he'd multiply the result by 2 and would get the volume of a sphere. Then he imagined a hemisphere within a cylinder as the one shown below. Also, he imagined a cone within the same cylinder. <em>What did he find?  </em>He found that the volume of the hemisphere should be equal to the volume of the cylinder minus the volume of the cone:

Then the volume of a sphere is twice this volume:
