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acre
are (a)
hectare (ha)
square kilometer (km²)
square meter (m²)
square centimeter (cm²)
square millimeter (mm²)
bushel
barn (b)
homestead
rood
square foot (ft²)
square inch (in²)
square mile
square rod
square yard (yd²)
township (twp)
Area is a mathematical concept that can be defined as the amount of two-dimensional space, that is, surface.
There are several units of area measurement, the most used being the square meter (m²) and its multiples and sub-multiples. Agrarian measures are also widely used: are, which is equivalent to one hundred square meters; and its multiple hectare, which is equivalent to ten thousand square meters.