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A ngan ((タイ語:งาน), , ) is a unit of area, equal to 400 square metres (20 m × 20 m), 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 (SI). The ngan equals 1/4 rai or 100 tarangwa ''aka'' square wa, very nearly 1/10 of an acre. ''Ngan'' also means ''work''. It is commonly used in Thailand and equals 4 are, another unit based on the metre and as commonly used in several countries recognized though not encouraged by the SI. As for many terms normally written in Thai alphabet, transliteration into English language caused a spelling variant, ''ngaan''. == See also == * Thai units of measurement * 1 E+2 m² for a comparison with other areas 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「ngan」の詳細全文を読む スポンサード リンク
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