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Centimeters and millimeters are both interconvertible units to measure length. The conversion factor is as follows:
1 centimetre = 10 millimetres
This means that if a copper wire is 180cm long, the wire would be;
180 × 10 = 1800mm long
Also, the number of 40 mm segments of wire that can be cut from the length is calculated as follows:
1800mm/40mm = 45
Learn more about conversion at: https://brainly.com/question/12103054
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