Definition:Square Kilometre
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Definition
The square kilometre is a derived unit of area.
One square kilometre is equal to a square whose side measures $1$ kilometre.
| \(\ds \) | \(\) | \(\ds 1\) | square kilometre | |||||||||||
| \(\ds \) | \(=\) | \(\ds 100\) | hectares | |||||||||||
| \(\ds \) | \(=\) | \(\ds 1 \, 000 \, 000\) | square metres |
The symbol for the square kilometre is $\mathrm {km}^2$.