Some info about BRAZILIAN PORTUGUESE
Category
GEOGRAPHY - PLACES
The acre , which is exactly equal to 10 square chains, 1⁄640 of a square mile, 4,840 square yards, or 43,560 square feet, and approximately 4,047 m2, or about 40% of a hectare. Based upon the international yard and pound agreement of 1959, an acre may be declared as exactly 4,046.8564224 square metres. The acre is sometimes abbreviated ac[1] but is usually spelled out as the word "acre".[2] <
Wikipedia contributors, "Acre," Wikipedia, The Free Encyclopedia,
ABOUT THE BRAZILIAN PORTUGUESE LANGUAGE