Answer:

Step-by-step explanation:
Let x represent height of the prism.
We know that volume of rectangular is equal to product of its height, width and length.
 , where w, h and l represents width, length and height respectively.
, where w, h and l represents width, length and height respectively.
We have been given that the surface area of rectangular prism is equal to the volume of the prism. So we can set an equation as:

We are also told that the measurements of the rectangular prism is 9 inches long and 4 inches wide. Upon substituting these values in above equation, we will get:

Let us solve for x.
 
   






Therefore, the value of x is 7.2 inches.
 
        
             
        
        
        
Answer:
it is a 90 degree angle
Step-by-step explanation:
because the little square in the corner 
 
        
                    
             
        
        
        
Answer:
i believe its d
Step-by-step explanation:
 
        
                    
             
        
        
        
Complementary angles add up to 90 degrees. Supplementary angles add up to 180 degrees, so no.
        
             
        
        
        
Answer
its uhhhhh i dont know 
Step-by-step explanation: