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Vietnam is located on the eastern margin of the Indochinese peninsula and occupies about 331,211.6 square kilometres (127,881.5 sq mi), of which about 25% was under cultivation in 1987. It borders the Gulf of Tonkin , Gulf of Thailand , and Pacific Ocean, along with China, Laos , and Cambodia .
Each square on the map is 2 cm by 2 cm (4 cm 2) and represents 1 km 2 on the surface of the Earth. For 1:25,000 maps, the grid lines are 4 cm apart. Each square on the map is 4 cm by 4 cm (16 cm 2) and represents 1 km 2 on the surface of the Earth. In each case, the grid lines enclose one square kilometre.
Vietnam, [e] [f] officially the Socialist Republic of Vietnam, [g] [h] is a country at the eastern edge of mainland Southeast Asia, with an area of about 331,000 square kilometres (128,000 sq mi) and a population of over 100 million, making it the world's fifteenth-most populous country.
Dymaxion map of the world with the 30 largest countries and territories by area. This is a list of the world's countries and their dependencies, ranked by total area, including land and water.
According to the General Statistics Office of the Government of Vietnam, the population of Cao Bằng province as of 2019 was 530,341 with a density of 79 persons per km 2 over a total land area of 6,700.26 square kilometres (2,586.98 sq mi).
According to a document published by the Political Department of Vietnam's Navy Command, the island is 630 metres (2,070 ft) in length, up to 300 metres (980 ft) in width and has an area of 0.15 square kilometres (37 acres) [2] while several foreign documents often use a slightly smaller number of 0.13 square kilometres (32 acres). [17]
50,000 to 100,000 square kilometers • 30,000 to 50,000 square kilometers • 20,000 to 30,000 square kilometers • 10,000 to 20,000 square kilometers; 7,000 to 10,000 square kilometers • 5,000 to 7,000 square kilometers • 3,000 to 5,000 square kilometers • 1,000 to 3,000 square kilometers; 250 to 1,000 square kilometers • 0.1 to 250 ...
Originally, many thước of varying lengths were in use in Vietnam, each used for different purposes. According to Hoàng Phê (1988), [1] the traditional system of units had at least two thước of different lengths before 1890, [2] the thước ta (lit. "our ruler") or thước mộc ("wooden ruler"), equal to 0.425 metres (1 ft 4.7 in), and the thước đo vải ("ruler for measuring ...