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  2. Square metre - Wikipedia

    en.wikipedia.org/wiki/Square_metre

    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 ...

  3. Pyeong - Wikipedia

    en.wikipedia.org/wiki/Pyeong

    Transcriptions. Romanization. tsubo. A pyeong (abbreviation py) is a Korean unit of area and floorspace, equal to a square kan or 36 square Korean feet. The ping and tsubo are its equivalent Taiwanese and Japanese units, similarly based on a square bu (ja:步) or ken, equivalent to 36 square Chinese or Japanese feet. [1][2]

  4. 9K35 Strela-10 - Wikipedia

    en.wikipedia.org/wiki/9K35_Strela-10

    The 9K35 Strela-10 (Russian: 9К35 «Стрела-10»; English: arrow) is a Soviet highly mobile, short-range surface-to-air missile system. It is visually aimed, and utilizes optical/infrared-guidance.

  5. Conversion of units - Wikipedia

    en.wikipedia.org/wiki/Conversion_of_units

    Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property ...

  6. 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.

  7. 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 ...

  8. Square mile - Wikipedia

    en.wikipedia.org/wiki/Square_mile

    Square miles should not be confused with miles square, a square region with each side having a length of the value given. For example, a region which is 20 miles square (20 mi × 20 mi) has an area of 400 sq mi; a rectangle of measuring 10 mi × 40 mi also has an area of 400 sq mi, but is not 20 miles square.

  9. Ancient Roman units of measurement - Wikipedia

    en.wikipedia.org/wiki/Ancient_Roman_units_of...

    equivalent Imperial equivalent Description dimidium scrupulum 50 1 ⁄ 576: 4.38 m 2 47.1 sq ft scrupulum 100 1 ⁄ 288: 8.76 m 2 94.3 sq ft duo scrupula 200 1 ⁄ 144: 17.5 m 2 188 sq ft sextula 400 1 ⁄ 72: 35.0 m 2 377 sq ft sicilicus 600 1 ⁄ 48: 52.6 m 2 566 sq ft semiuncia 1,200 1 ⁄ 24: 105 m 2 1,130 sq ft uncia 2,400 1 ⁄ 12