Please help me with these problems; geometry is really getting on my nerves. T-T        
      
                
     
    
    
    
    2  answers:
            
              
For #19 part A :
                                
             
                    
              
Veridian has great answers. I'm only posting this as a supplement to help provide the diagrams showing the various angles, that lead into the equations Veridian uses. 
 
                                
             
         	
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