| 
				
					
						| 
        
        
  
							
							 Problem 328. Triangle, Incircle, Tangency Points, 
							Parallel, Midpoint |  
					
						| 
					
						
	|  |  
							
			| 
              The figure shows a triangle 
				ABC with the incircle I and the tangency points D, E, and F. The 
				line through A parallel to FE meets DE at G. The line through A 
				parallel to DE meets FE at H. Prove that the line GH bisects AB 
				and AC.
 
				 
 
				  |  
				  |  |