The hectare is a unit of area, defined as 10,000 square metres, and primarily used in the measurement of land. In 1795, when the metric system was introduced, the are was defined as being 100 square metres and the hectare ('hecto-' + 'are') was thus 100 ares or 1/100 km2. When the metric system was rationalised in 1960 with the introduction of the International System of Units (SI), international recognition of the are was withdrawn, though the hectare continued to be recognised as a "unit of measure that may be used with SI".[1]
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Mon Jul 11, 2011 7:36 am by chandra132
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