The figure shows an isosceles right triangle ABC. D is the excenter and BE 
	  is perpendicular to AD If AD = 15, find the measure of BE.
Geometry Problems
		
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		Ten problems: 1411-1420
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			Right Triangle
 
			
			Isosceles Triangle
			        
				
				Perpendicular lines
		
		Excenter
              
		                
			Circle
						                
  						
        Circle Tangent Line
         
				45 Degree Angle
 
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