Answer: 9/24
Step-by-step explanation: multiply 8 by 3 to get 24 so you would multiply the 3 by 3 to get 9 as the numerator.
 
        
                    
             
        
        
        
Hope you know that formula for volume of a cube is area of base time height 
and volume of a square pyramid is area of base time height divide 3 
- so in this your exercise case we know that area of cube is 36 cm^3 what is area of base time height 
- so this mean that the volume of a square pyramide what can fit perfectly inside the cube will be equal 36/3 = 12 cm^3
        
                    
             
        
        
        
SAS because you have 2 known side lengths and one angle!