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  2. Acre - Wikipedia

    en.wikipedia.org/wiki/Acre

    The acre is related to the square mile, with 640 acres making up one square mile. One mile is 5280 feet (1760 yards). In western Canada and the western United States, divisions of land area were typically based on the square mile, and fractions thereof. If the square mile is divided into quarters, each quarter has a side length of 1 ⁄ 2 mile ...

  3. Area - Wikipedia

    en.wikipedia.org/wiki/Area

    1 acre = 4,840 square yards = 43,560 square feet. ... 1 barn = 10 −28 square meters. ... The most basic area formula is the formula for the area of a rectangle.

  4. Morgen - Wikipedia

    en.wikipedia.org/wiki/Morgen

    A morgen was a unit of measurement of land area in Germany, the Netherlands, Poland, Lithuania and parts of the Dutch Overseas Empire, such as South Africa.The size of a morgen varies from 1 ⁄ 2 to 2 + 1 ⁄ 2 acres (2,000 to 10,100 m 2).

  5. Basal area - Wikipedia

    en.wikipedia.org/wiki/Basal_area

    Basal area is the cross-sectional area of trees at breast height (1.3m or 4.5 ft above ground). It is a common way to describe stand density. In forest management, basal area usually refers to merchantable timber and is given on a per hectare or per acre basis. If one cut down all the merchantable trees on an acre at 4.5 feet (1.4 m) off the ...

  6. Square metre - Wikipedia

    en.wikipedia.org/wiki/Square_metre

    It is the area of a square with sides one metre in length. ... 0.000 247 105 381 acres; 0.024 710 5381 cents; 1.195 990 square yards; 10.763 911 square feet; 1 550. ...

  7. Hectare - Wikipedia

    en.wikipedia.org/wiki/Hectare

    The hectare (/ ˈ h ɛ k t ɛər,-t ɑːr /; SI symbol: ha) is a non-SI metric unit of area equal to a square with 100-metre sides (1 hm 2), that is, 10,000 square metres (10,000 m 2), and is primarily used in the measurement of land. There are 100 hectares in one square kilometre. An acre is about 0.405 hectares and one hectare contains about ...

  8. Section (United States land surveying) - Wikipedia

    en.wikipedia.org/wiki/Section_(United_States...

    One of the reasons for creating sections of 640 acres (260 ha) was the ease of dividing into halves and quarters while still maintaining a whole number of acres. A section can be halved seven times in this way, down to a 5-acre (2 ha) parcel, or half of a quarter-quarter-quarter section—an easily surveyed 50-square-chain (2 ha) area. This ...

  9. Cuerda - Wikipedia

    en.wikipedia.org/wiki/Cuerda

    In Puerto Rico, a cuerda is a traditional unit of land area nearly equivalent to 3,930 square meters, [1] [2] or 4,700 square yards, 0.971 acre, or 0.393 hectare (ha). The precise conversion is 1 cuerda = 3,930.395625 m 2. [2] The term "Spanish acre" instead has been used sometimes by mainlanders. [1]