Tarangwa
Encyclopedia
A tarang wa or square wa, sometimes transliterated as 'waa' or 'wah' is a unit of area
used in Thailand
for measuring land or property. It is defined as the area of a square
whose sides measure exactly one wa (two metres), equivalent to four square metre
s. Although its current size is precisely derived from the metre, it is neither part of nor recognized by the modern metric system
, the International System
(SI).
The square wa equals 1/100 ngaan
or 1/400 rai
, two units of area frequently used in Thailand. It also equals 1/25 are
, another metre-derived unit of area not officially part of the SI.
As with many terms normally written with the Thai alphabet
, there are many variant transliteration
s into English, e.g. dta-raang waa and tarang wah.
Area
Area is a quantity that expresses the extent of a two-dimensional surface or shape in the plane. Area can be understood as the amount of material with a given thickness that would be necessary to fashion a model of the shape, or the amount of paint necessary to cover the surface with a single coat...
used in Thailand
Thailand
Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...
for measuring land or property. It is defined as the area of a square
Square (geometry)
In geometry, a square is a regular quadrilateral. This means that it has four equal sides and four equal angles...
whose sides measure exactly one wa (two metres), equivalent to four square metre
Square metre
The square metre or square meter is the SI derived unit of area, with symbol m2 . It is defined as the area of a square whose sides measure exactly one metre...
s. Although its current size is precisely derived from the metre, it is neither part of nor recognized by the modern metric system
Metric system
The metric system is an international decimalised system of measurement. France was first to adopt a metric system, in 1799, and a metric system is now the official system of measurement, used in almost every country in the world...
, the International System
Si
Si, si, or SI may refer to :- Measurement, mathematics and science :* International System of Units , the modern international standard version of the metric system...
(SI).
The square wa equals 1/100 ngaan
Ngaan
A ngan is a unit of area, equal to 400 square metres , used for measuring land or property area. Its current size is precisely derived from the metre, but is neither part of nor recognized by the modern metric system, the International System .The ngan equals 1/4 rai or 100 tarangwa aka square wa,...
or 1/400 rai
Rai (area)
A rai is a unit of area, equal to 1,600 square metres , used for measuring land area. Its current size is precisely derived from the metre, but is neither part of nor recognized by the modern metric system, the International System ....
, two units of area frequently used in Thailand. It also equals 1/25 are
ARE
Are, ARE or Åre may refer to: United Arab Emirates using ISO 3166-1 alpha-3 country code*The second-person singular and plural forms of the verb "to be", copula of the English language...
, another metre-derived unit of area not officially part of the SI.
As with many terms normally written with the Thai alphabet
Thai alphabet
Thai script , is used to write the Thai language and other, minority, languages in Thailand. It has forty-four consonants , fifteen vowel symbols that combine into at least twenty-eight vowel forms, and four tone marks ....
, there are many variant transliteration
Transliteration
Transliteration is a subset of the science of hermeneutics. It is a form of translation, and is the practice of converting a text from one script into another...
s into English, e.g. dta-raang waa and tarang wah.