Question 517026
Distance between two points													
x1	y1	x2	y2										
d= 	{{{sqrt((y2-y1)^2+(x2-x1)^2)}}}												
-4	-9	7	-6										
d= 	{{{sqrt((		-6	-	-9	)^2	+	(	7	-	-4	)^2	)}}}
d= 	{{{sqrt((		3	)^2	+	(	11	)^2	)}}}				
d= 	{{{sqrt((		130	)  	)}}}								
d= 	11.40												
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