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To convert millimeters (mm) to centimeters (cm), you need to divide by 10 since there are 10 millimeters in a centimeter. Therefore, 30mm is equal to 3cm. This conversion is based on the metric system where units are related by powers of 10.

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3 cm

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Wiki User

13y ago
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Duduzile Mnguni

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11mo ago
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Q: How much 30mm is in cm?
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