160 square inches 
if the block is cut after it’s been painted, two sides with the same measurements don’t have glitter on them. you find the area of the one rectangle and multiply it by 2 as follows:
A = length • width
A = 10 • 8 = 80 
area that needs to be covered = 80 • 2 = 160 square inches 
        
             
        
        
        
It could've been a PENTAGON and a SQUARE.
It could've been a HEXAGON and a TRIANGLE.
        
                    
             
        
        
        
Step-by-step explanation:

 
        
             
        
        
        
-10 or   X=1.25
hope this helps