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			 I need to find the area of...part of a circle. 
		
	
		
		
		
		
		
	
		
		
	
	
	It has a 2.5 inch diameter. I need to know the area of the 1/2 inch outer cross section. I hope this makes sense. If I was to cut off 1/2 an inch of the circle how much would I have? Thanx muchly  |