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Cubic metre - Wikipedia, the free encyclopedia (397 words) |
 | The cubic metre (symbol m³) is the SI derived unit of volume. |
 | A cubic millimetre (mm³) is the volume equal to that of a cube with edges of 1 millimetre. |
 | A cubic kilometre (km³) is the volume equal to that of a cube of side length 1 kilometre. |
| Kilometre - Wikipedia, the free encyclopedia (267 words) |
 | A kilometre (American spelling: kilometer), symbol: km is a unit of length in the metric system equal to 1000 metres (from the Greek words χίλια (khilia) = thousand and μέτρο (metro) = count/measure). |
 | Like the kilometre, all units of length in the metric system are based on the metre, by adding an SI prefix that stands for a power of ten, such as hecto for one hundred to form hectometre (= 0.1 kilometre) or mega for one million to form megametre (= 1,000 kilometre). |
 | Unicode has symbols for "km" (㎞), for square kilometre (㎢) and for cubic kilometre (㎦); however, they are useful only in CJK texts, where they are equal in size to one Chinese character. |