acre [ac]</option>; acre (US survey) [ac]; are [a]; arpent; barn [b]; circular inch; circular mil; cuerda; Electron cross section; hectare [ha]; homestead; plaza; rood; sabin; section; square centimeter [cm^2]; square chain [ch^2]; square decimeter [dm^2]; square dekameter [dam^2]; square foot [ft^2]; square foot (US survey) [ft^2]; square hectometer [hm^2]; square inch [in^2]; square kilometer [km^2]; square meter [m^2]; square micrometer [µm^2]; square mil [mil^2]; square mile [mi^2]; square mile (US survey) [mi^2]; square millimeter [mm^2]; square nanometer [nm^2]; square perch; square pole; square rod; square rod (US survey); square yard [yd^2]; township; varas castellanas cuad; varas conuqueras cuad
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