Answer:
A line has length, but no width or height
Step-by-step explanation:
 
        
             
        
        
        
Answer:
x= 0,5
Step-by-step explanation:
You have to move all the terms to the left side and set them equal to zero. Then set each factor equal to zero. 
Hope this helped you!
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X=1 
The length of line DF is 18
        
             
        
        
        
Answer:
-1/5
Step-by-step explanation: