The Hectare reference article from the English Wikipedia on 24-Jul-2004
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Hectare

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A hectare (symbol ha) is a metric unit of surface area, equal to 100 ares (the name is a contraction of the SI prefix hecto + are). It is a non-SI unit currently accepted (although discouraged) for use with the SI.

One hectare is equivalent to:

Conversely: See 1 E4 mò for further comparisons.

See also: Orders of magnitude, conversion of units

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