The etymology of etymology is from the greek etumologia which means "true sense of a word"
Millimetres and millimetres are the same measurement. Therefore, 160 millimetres is equal to 160 millimetres.
2. That's kind of obvious from the name - 2 millimetres
Millimetres and millimetres are the same unit. Therefore, one millimetre is equal to one millimetre.
Millimetres are units of measurement. They are 1/1000 of a metre. There arr 25.4 of them in an inch.