The difference in volumes between cube and cone is 5190.52 cubic units.
<h3>How to find the volume of a cube?</h3>
Suppose that:
The side length of the considered cube is L units.
Then, we get:
The volume of that cube = L³ cubic units.
The outer figure is a cube with an edge length of 20 centimeters. 
The volume of that cube = L³ cubic units.
 = 8000 cubic units.
The volume of that cone 

The height is 20 cm and the radius will be

volume of that cone 

= 
= 59190.52  cubic units
Therefore, the difference in volumes bbetween cube and cone is 5190.52 cubic units.
Learn more about the volume of a cube here:
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Answer:
it is A
Step-by-step explanation:
i did this yesterday 
 
        
                    
             
        
        
        
The sum of complementary angles is 90 degrees, thus
3x + 6 + 3x + 18 = 90
=> 6x + 24 = 90
=> 6x = 90 - 24 = 66
=> x = 66 / 6 = 11
=> m<A = 3(11) + 6 = 33 + 6 = 39 degrees.
        
             
        
        
        
Answer:
85
Step-by-step explanation:
I hope my answer help you