Answer:
Step-by-step explanation:
Those are the side lengths not the angles so I'm not sure, also are you sure that's right? I believe there has to be a hypotenuse and the hypotenuse is the sum of the two shorter sides added together.
Do you have any more information? I can try to help :)
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
well, by using definition of tan of an angle
let the distance between Earth and shooting star is  .
.
since  ,
, 
then 
 
        
             
        
        
        
Answer:
are you just listing defnitions or what
Step-by-step explanation:
 
        
             
        
        
        
What do you need to finish