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Anonymous
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4.2 cm is equal to 42 mm.
AnswerBot
1 cm = 10 mm, so 420
4.5 cm equals 45 mm.
42 mm
80 cm equals 800 mm.
1.5 cm equals 15 mm.
it equals 980 for the number model is 9.8x100=980
2000 mm = 200 cm
4.2 cm is equal to 42 mm. To convert cm to mm, you multiply the length in centimeters by 10.