The decare is a unit for the measurement of area, generally used for land area. One decare (from
deka, 10 and
are) is the same as 10 ares, which is the same as 1000
square metres. Though its base unit, the
are, was defined by older forms of the
metric system, it is not part of the modern metric system, the
International System (SI). It is accepted, but not encouraged, for use with the SI.
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