Are (symbol a, IPA: /ɛə(r) or ɑə(r)/) is a unit of area, equal to 100 square metres (10 m × 10 m), used for measuring land area. Area is a Quantity expressing the two- Dimensional size of a defined part of a Surface, typically a region bounded by a closed Curve. M^2 redirects here For other uses see M². CM2 redirects here It was defined by older forms of the metric system, but is now outside of the modern International System (SI). The metric system is a decimalised system of measurement. It exists in several variations with different choices of base units, though the choice of base units does ^[1]

It is commonly used in many countries—in particular, in French-, Portuguese-, Polish- Dutch- and German-speaking countries—to measure real estate; elsewhere, the square metre is usually used. French ( français,) is a Romance language spoken around the world by 118 million people as a native language and by about 180 to 260 million people Portuguese ( or língua portuguesa) is a Romance language that originated in what is now Galicia (Spain and northern Portugal. Polish ( język polski, polszczyzna) is the Official language of Poland. Dutch ( is a West Germanic language spoken by around 24 million people 22 million of which are from the Netherlands, Belgium and Suriname The German language (de ''Deutsch'') is a West Germanic language and one of the world's major languages. The are is sometimes used in combination with the centiare, e. g. "10 ares 12 centiares" = 1012 m². Larger land areas are generally measured in hectares. Explanation The hectare is commonly used in most countries around the world especially in domains concerned with land planning and management such as Agriculture, The decare is commonly used in the former Ottoman countries, usually under local names. The decare is a unit for the measurement of area generally used for land area The Ottoman Empire (1299–1923 ( Old Ottoman Turkish: دولتْ علیّه عثمانیّه Devlet-i Âliye-yi Osmâniyye, Late Ottoman and Modern Turkish A dunam or dönüm, dunum, donum is a unit of Area used in the Ottoman Empire and still used in various standardized versions Other prefixes for multiples and submultiples of the are are not in common use. An SI prefix (also known as a metric prefix) is a name or associated symbol that precedes a unit of measure (or its symbol to form a Decimal multiple or There are other local units which are exact multiples of the are, e. g. the Thai rai, 16 a. The Kingdom of Thailand (ˈtaɪlænd ราชอาณาจักรไทย, râːtɕʰa-ʔaːnaːtɕɑ̀k-tʰɑj A rai ( Thai ไร่ is a unit of Area, equal to 1600 Square metres (40 m × 40 m used for measuring land area

The are is the standard unit of measurement for private plots of land (as opposed to large industrial and agricultural properties) in Russia and all the countries of the former Soviet Union. But since the original root word "are" has never been in use in Russian, and only the word "hectare" exists as a unit of land measurement, the Russian word for "are" is "sotka" (сотка), which roughly translates as "hundredth". Thus, the Russian language regards the hectare as the "root" unit of measurement, and a "sotka" is essentially a "centihectare", or (1 a × 100 ÷ 100). City dwellers in the former USSR use the term "sotka" to describe the size of their suburban dacha or allotment garden plots or small city parks; country dwellers or wealthy suburban homeowners use it to describe the size of the private yards around their houses, small private orchards, and the like. Dacha ( is a Russian word for seasonal or year-round second homes located in the Exurbs of Soviet and Russian cities Allotment gardens are characterised by a concentration in one place of a few or up to several hundreds of land parcels that are assigned to individual families Hectares are used to describe larger plots of land, such as a factory complex, a collective farm, a university campus, or a nature preserve.

Conversions

One are is equivalent to:

Metric

• 0. 0001 km² (square kilometres)
• 0. The kilometre ( American spelling: kilometer) symbol km is a unit of Length in the Metric system, equal to one thousand 01 ha (hectares)
• 1 dam² = 10 m × 10 m (a square 10 metres on a side)
• 100 m² (square metres)
• 100 ca (centiares)

English units

• 0. Explanation The hectare is commonly used in most countries around the world especially in domains concerned with land planning and management such as Agriculture, A decametre also dekametre ( American spelling: dekameter, earlier decameter symbol dam) is a very rarely used unit of M^2 redirects here For other uses see M². CM2 redirects here A centiare (symbol ca) is a unit of area equal to 1 Square meter, used in some countries for measuring small land areas usually in combination with ares e 000 038 610 2 square miles (statute)
• 0. The square mile is an imperial and US unit of Area equal the area of a square of one statute mile. 024 710 538 international acres
• 0. The acre is a unit of Area in a number of different systems including the imperial and U 024 710 439 U. S. survey acres
• approximately 1076. The acre is a unit of Area in a number of different systems including the imperial and U 39 square feet

Other

• 0. The square foot is an Imperial unit / US customary unit (non- SI non- metric) of Area, used mainly in the United States 1 stremma

See also

• 1 E2 m² for a comparison with other areas

References

External links

• US NIST Reference on SI, Table 7. Other units outside the SI that are currently accepted for use with the SI, subject to further review. Note that this source refers to BIPM SI 7th edition. Reference should be made to BIPM SI 8th edition.