First of all today we write out 19 in Roman numerals as XIX but the Romans themselves would have probably calculated 19 as XVIIII and then simplified it to IXX in fact the Latin word for IXX is 'undeviginti' which literally means one from twenty.
So the question is: What is IXX squared?
IXX squared = -I(-I+XX)+XX(-I+XX)
Multiplying out the brackets = +I-XX-XX+CCCC
Collecting like terms = -XXXX+CCCC+I (401-40)
When simplified = CCCLXI (361) which is the answer to your question.
Note that in maths a minus number multiplied by a minus number becomes a plus number. Thus -I times -I is +I.
19x19=361 so you can write the answer in roman numerals as CCCLXI.
19 = XIXXIX is the number 19 in Roman numerals.
XIX is 19 in Roman numerals.
XIX in Roman numerals is 19 in standard numerals.
The roman numerals for 12 and 19 are, XII and XIX, respectively.
19x19=361 so you can write the answer in roman numerals as CCCLXI.
19 = XIXXIX is the number 19 in Roman numerals.
XIX is 19 in Roman numerals.
XIX in Roman numerals is 19 in standard numerals.
The roman numerals for 12 and 19 are, XII and XIX, respectively.
10-19-1989 in Roman numerals is X.XIX.MCMLXXXIX
IXX is a simplified version of XVIIII which equals 19 But in today's notation of Roman numerals 19 is said to be XIX.
January 19, 2012 in Roman numerals is written as XIX.I.MMXII.
XIX
June 19, 2010, can be written as XIX.VI.MMIX in Roman numerals.
July 19, 2008 in Roman numerals is written as XIX.VII.MMVIII.
November 19 2008 can be converted to Roman numerals as XIX.XI.MMXVIII.