9000mm
 because there is ten mm in one cm
        
                    
             
        
        
        
The answer is 5.477225575.... or 5.5 if you want the simplified ansewer
        
                    
             
        
        
        
Answer:
15/7 or 2 1/7
Step-by-step explanation:
 
        
                    
             
        
        
        
I'm pretty sure this is Triangle stuff, with Sin, Cos + Tan, etc.
I can't remember it all I'm afraid, but the angle will be the 1 degree, 10 minutes - the Hypotenuse side will be the 3.5 km