I think the answer is 8, not sure though
        
             
        
        
        
A) AB is where plane P and plane R intersect.
B) A, D, B are collinear (on the same line).
C) plane ADG (three points on the plane)
D) F, D, G, A are all on plane R
E) D lies on both planes.
        
             
        
        
        
Given:
The volume of the sphere = 12348π in³
To find the radius of the sphere.
Formula
The volume of a sphere of radius r is

According to the problem,

Eliminating π from both the side.
or, 
or, 
or, 
or, ![r=\sqrt[3]{9261}](https://tex.z-dn.net/?f=r%3D%5Csqrt%5B3%5D%7B9261%7D)
or, 
Hence,
The radius of the sphere is 21 inches.
 
        
                    
             
        
        
        
A unit cubes measures a distance of one on each side. The cube are then counted in a way to allow calculation of the volume visually.