XI= 11
because X equals 10 and I equals 1. So take X+I (10+1) and get XI (11)
The date November 11th 2009 can also be written as 11-11-2009 and in Roman numerals this can be written as XI.XI.MMIX
November 11th 2009 can also be written as 11-11-2009 which is written in Roman numerals as XI.XI.MMIX
11.11.2011 in Roman numerals is represented as XI.XI.MMXI.
11 August 1979 can also be written as 11-08-1979 which in Roman numerals would be XI.VIII.MCMLXXIX
The date 09-11-06 can be written in Roman numerals as IX.XI.VI. The full date 09-11-2006 would be IX.XI.MMVI
The number 11 is written as XI in roman numerals.
The date November 11th 2009 can also be written as 11-11-2009 and in Roman numerals this can be written as XI.XI.MMIX
November 11th 2009 can also be written as 11-11-2009 which is written in Roman numerals as XI.XI.MMIX
11.11.2011 in Roman numerals is represented as XI.XI.MMXI.
11 August 1979 can also be written as 11-08-1979 which in Roman numerals would be XI.VIII.MCMLXXIX
Roman Numeral: XI = 11 = Eleven.
The date 09-11-06 can be written in Roman numerals as IX.XI.VI. The full date 09-11-2006 would be IX.XI.MMVI
November 11, 1953, in Roman numerals is written as XI.XI.MCMLIII.
The date 9/11/2001 would be written as "IX/XI/MMI" in Roman numerals.
Nowadays it is written as: IX-XI-MCMXCVII
February 11, 1993 in Roman numerals is written as XI.II.MCMXCIII.
In today's notation it is written as: XVII-XI-MCMLXXXIX