Answer:
a) a = 12s
Step-by-step explaination:
 
        
             
        
        
        
I believe the answer is $33.60?
        
                    
             
        
        
        
Answer:
Yes
Step-by-step explanation:
But if you stuck a pencil through the center of the picture the line that it makes would not be coplanar. 
 
        
                    
             
        
        
        
Answer:
43
Step-by-step explanation:
if EF(part) = 18 and DF(the whole line) = 61
61-18 is 43. 43=DE
Please give brainliest thanks