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The Mekong Delta, covering about 40,000 square kilometers, is a low-level plain not more than three meters above sea level at any point and criss-crossed by a maze of canals and rivers. So much sediment is carried by the Mekong's various branches and tributaries that the delta advances sixty to eighty meters into the sea every year.
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 ...
Area ; system unit unit-code symbol or abbrev. notes sample default conversion combination output units SI: square kilometre: km2 km 2: US spelling: square kilometer: 1.0 km 2 (0.39 sq mi) km2 sqmi; square metre: m2 m 2: US spelling: square meter: 1.0 m 2 (11 sq ft) m2 sqft; square centimetre: cm2 cm 2: US spelling: square centimeter: 1.0 cm 2 ...
When using "hand in" to convert to hands and inches, the rounded hands and inches values are equivalent, and use the same fraction, if any. Special rounding of the inches value only occurs when "hand in" is the output. For example, if the output is "in hand", the inches value is rounded independently from the hands value.
Vietnam, [e] [f] officially the Socialist Republic of Vietnam, [g] 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.
Urban areas in Vietnam include cities, district-level town, and commune-level town officially recognized by state authorities of Vietnam. While districts and communes are generally rural, some may be classified as urban if they meet certain conditions. Communes set to be upgraded to towns can also be recognized as type V urban areas.
List of political and geographic subdivisions by total area from 5,000 to 7,000 square kilometers. Add languages. ... Area (km 2) Notes: ... Province of Vietnam. ...
By 1961, the area of the city had expanded to 584 km 2, and the population was 91,000 people. In 1978, National Assembly (Vietnam) decided to expand Hanoi for the second time to 2,136 km 2, with a population of 2.5 million people. [81] By 1991, the area of Hanoi continued to change, decreasing to 924 km 2 (357 sq mi), but the population was ...