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Old 02-24-2013, 04:39 PM  
pornmasta
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Join Date: Jun 2006
Posts: 19,060
you need to apply trigonometric laws on an isoscele triangle, something like that

http://en.wikipedia.org/wiki/Law_of_tangents

Last edited by pornmasta; 02-24-2013 at 04:40 PM..
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