A = 31 degree 
Cos 31 degree = 400/x
X = 400/ Cos 31
= 400/0.8572
= 466.7ft
        
             
        
        
        
Answer:
The volume of the dilated cube is 9375cm³. The volume of the original cube is 75 cm³. The scale factor for the dilation is 5. We multiply the volume of the original cube by 125 to obtain the volume of the dilated cube.
Step-by-step explanation: If thats 
not right, then i am sorry, i am just getting started
 
        
             
        
        
        
I first converted 23 ft to inches by multiplying by 12
23 ft= 276 in
I then added the half inch so it became 276.5 inches
converting back to ft, by dividing by 12
276.5 in= 23.04 ft
        
             
        
        
        
W/12+ 1/4 
Wait for another person
        
             
        
        
        
Use my photo to see the work and answers! Hope this helped :)