Answer:
264 units.
Step-by-step explanation:
since the two bases are 20 and 24, the shorter base is usually the shorter number, so the shorter base is 20 units. Which means, the longer base is 24 units. So, half of 24 is 12. So, the height is 12. Then I used to calculator, my results are in the picture below.
 
        
                    
             
        
        
        
Answer:
x=60
Step-by-step explanation:
The sum of interior angles of a regular Pentagon is 540°
x+2x+2.5x+x+10+2x+20=540
8.5x=540-30
8.5x=510
x=510/8.5=60
 
        
                    
             
        
        
        
What expressions? Will edit when I get it
        
                    
             
        
        
        
This is a proportion problem
36/24 = 120/x
then do cross multiplication and you have x= 7.2