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  2. Dunam - Wikipedia

    en.wikipedia.org/wiki/Dunam

    In Israel and Turkey, the dunam is 1,000 square metres (10,764 sq ft), which is 1 decare. From the Ottoman period and through the early years of the British Mandate for Palestine , the size of a dunam was 919.3 square metres (9,895 sq ft), but in 1928, the metric dunam of 1,000 square metres (0.10 ha) was adopted, and this is still used today ...

  3. Acre - Wikipedia

    en.wikipedia.org/wiki/Acre

    The entire yellow square is one square mile; the dark blue area at right represents 100 acres. The acre (/ ˈeɪkər / AY-kər) is a unit of land area used in the British imperial and the United States customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 10 square ...

  4. Square metre - Wikipedia

    en.wikipedia.org/wiki/Square_metre

    The square metre (international spelling as used by the International Bureau of Weights and Measures) or square meter (American spelling) is the unit of area in the International System of Units (SI) with symbol m2. [1] It is the area of a square with sides one metre in length. Adding and subtracting SI prefixes creates multiples and ...

  5. Hectare - Wikipedia

    en.wikipedia.org/wiki/Hectare

    The entire yellow square is one square mile. The hectare (/ ˈhɛktɛər, - tɑːr /; 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.

  6. List of largest buildings - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_buildings

    365,000 m 2 (3,930,000 sq ft) 2.55 million m 3 (90 million cu ft) Heaviest building in the world; accommodating the two houses of the Parliament of Romania: the Senate and the Chamber of Deputies, along with three museums and an international conference center. [2-b] Goodyear Airdock. United States.

  7. List of conversion factors - Wikipedia

    en.wikipedia.org/wiki/List_of_conversion_factors

    sievert (SI unit) Sv. ≡ 1 J/kg [44] = 1 Sv = 1 J/kg = 1 m 2 ⋅s 2. Although the definitions for sievert (Sv) and gray (Gy) would seem to indicate that they measure the same quantities, this is not the case. The effect of receiving a certain dose of radiation (given as Gy) is variable and depends on many factors, thus a new unit was needed to ...

  8. Katha (unit) - Wikipedia

    en.wikipedia.org/wiki/Katha_(unit)

    In Bihar, one Katha may vary from 720 to 3,267 square feet (ft 2). 1 Bigha = 20 Katha. One katha is divided in 20 dhur. One dhur is subdivided in 20 dhurki. The origin of the term and measurement unit was during the Pala Empire. [1] 1 Decimal = 435.6 square feet & 1 Acre = 100 decimal. [2][3]

  9. Square (unit) - Wikipedia

    en.wikipedia.org/wiki/Square_(unit)

    square metre. 9.29030. The square is an Imperial unit of area that is used in the construction industry in the United States and Canada, [1] and was historically used in Australia. One square is equal to 100 square feet. Examples where the unit is used are roofing shingles, metal roofing, vinyl siding, and fibercement siding products.