K kubekoo New Member Joined Aug 30, 2004 Messages 22 Gender Undisclosed HSC N/A Aug 1, 2005 #1 it came from year1994..... if anyone know, please help to understand it.
S shafqat Member Joined Aug 20, 2003 Messages 517 Gender Undisclosed HSC N/A Aug 1, 2005 #2 Extend BD to centre O. OD is R - .1. OA is R. Use pythag in triangle OAD.
K kubekoo New Member Joined Aug 30, 2004 Messages 22 Gender Undisclosed HSC N/A Aug 2, 2005 #3 Super thx for this.
