Assertion: acre's area | /r/HasProperty | equivalent
Facets:
value: to 1/640 of a square mile
type: OTHER
value: precisely
type: DEGREE
Source sentences:
text: An acre of land is further described as the area of one furlong by one chain measuring 660 feet by 66 feet that are precisely equivalent to 1/640 of a square mile, approximately 40% of an hectare, 43,560 square feet (or 4,047 square meters).