how many square meters has an hectare?
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1 hectare = 10 000 square meter\n\ncheck out the site for more conversions
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for consolidated urban areas with at least urban density of 400 persons per square kilometer (or the nearly identical US defintion = 1,000 per square mile.\n\nNYC metro in the United States.\n3,353 square miles - (8,683 Sq Km)
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An acre is roughly half the size of a football pitch. A hectare is equal to 10,000 square metres and is  2,471 acres.
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ok, so 1 hectare = 2.47105381 acres\nand 1 Acre = 4047 square meters\nYou better check out this link it's useful and helpful http://www.towersurveys.co.uk/Amendments140304/Convertme.htm
1119656
Australia has an area of 2,940,521 sq. miles \n US is 3,618,770 square miles
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Two acres is exactly 8093.71284 m2 (square meters). It is like a square piece of land that measures approximately 90 meters long (all 4 sides measure 90 meters).
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1866.761902 feet on a side, if it's a perfect square. Or 1320 feet by 2640 feet. \n80 acres at 43,560 sq ft per acre is 3,484,800 sq ft.
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About 5 million square kilometers are marked as agricultural, Europe is 9,938,000 sq km, so that makes about 50% of the total surface!
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1 (square kilometer) = 0.386102159 square miles\n114 people / 2.6 sq. mi.\n43.8 people / sq. mi\nCairo - Density 35,420/km² \nPortugal is the 87th most densly populated country with 114 people / km^3\nhttp://en.wikipedia.org/wiki/List_of_countries_by_population_density\n\nThe world population is 6.5 billion humans, and Earth's area is 510 million square kilometers (200 million square miles). Therefore the world-wide human population density is 6.5 billion / 510 million = 13 per km² (33 per sq mi), or 43 per km² (112 per sq mi) considering that humans live on land, which forms 150 million km² (58 million sq mi) of the earth. This density rises with the population growth, and some people think there is a limit of what the Earth can support.\n\nSeveral of the highest-density territories in the world are very small city-states, micronations or dependencies. These territories share a relatively small area and an exceptionally high urbanization level, with an economically specialized city population drawing also on rural resources outside the area, illustrating the difference between high population density and overpopulation.\n\nCities with exceptionally high population densities are often considered to be overpopulated, though the extent to which this is the case depends on factors like quality of housing and infrastructure or access to resources. Most of the largest densely-populated cities are in southern and eastern Asia, though Cairo and Lagos in Africa also fall into the category. City population is however, heavily dependent on the definition used for the urban area: densities will be far higher for the central municipality than when more recently-developed and as yet administratively unincorporated suburbs are included, as in the concepts of agglomeration or metropolitan area, the latter including sometimes neighbouring cities.
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Some of\n\n1-How many square millimetres are there in a square centimetre? \n1 cm = 10 mm, so 1 cm2 = 10 × 10 = 100 mm2. \n\n2-How many square centimetres are there in a square metre? \n1 m = 100 cm, so 1 m2 = 100 × 100 = 10,000 cm2. \n\n3-How many square metres are there in a square centimetre? \n1 cm = 0·01 m, so 1 cm2 = 0·01 × 0·01 = 0·0001 cm2.\n\n4-What is the area of a square having side-length 3.4?\nThe area is the square of the side-length, which is 3.4 × 3.4 = 11.56.\n\n5-What is the area of a rectangle having a length of 6 and a width of 2.2?\nThe area is the product of these two side-lengths, which is 6 × 2.2 = 13.2. \n\n6-What is the area of a parallelogram having a base of 20 and a corresponding height of 7?\nThe area is the product of a base and its corresponding height, which is 20 × 7 = 140. \n\n7-What is the area of a trapezoid having bases 12 and 8 and a height of 5?\nUsing the formula for the area of a trapezoid, we see that the area is \n1/2 × 5 × (12 + 8) = 1/2 × 5 × 20 = 1/2 × 100 = 50\n\n8-What is the area of the triangle below having a base of length 5.2 and a height of 4.2?\nThe area of a triangle is half the product of its base and height, which is 1/2 ×5.2 × 4.2 = 2.6 × 4.2 = 10.92.. \n\n9-What is the area of a circle having a radius of 4.2 cm, to the nearest tenth of a square cm? Using an approximation of 3.14159 for Pi, and the fact that the area of a circle is Pi × r2, the area of this circle is Pi × 4.22 3.14159 × 4.22 =55.41…square cm, which is 55.4 square cm when rounded to the nearest tenth.
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An acre is a measure of area, not distance, so it would be square miles.\n\nThere are 0.156 square miles in 100 acres.
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80 meters.\n\nthere are 1000 meters in a kilometer so:\n\n.08 km * 1000 m per km = 80 m
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1 half acre = 21,780 square feet\n\nSource: Google\n\nJust type in the conversion :)
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The Hawaiian Islands cover 10,932 square miles of land and water. Hawaii is ranked as the 43rd largest of the 50 states ahead of Rhode Island, Delaware, Connecticut, New Jersey, New Hampshire, Vermont, and Massachusetts.\nDelaware covers 2,489 square miles of land and water.\n\nEven without the water, Hawaii is still larger:\n6,423 square miles of Hawaii are land areas\n1,955 square miles of Delaware are land areas
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An acre is 43,560 square feet.  The dimensions can be any two numbers that when multipled equal 43,560, but if you want a perfectly square acre, the dimensions would be about 208.71' x 208.71'.
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not really a farm, it would be about 5.9 acres.\n\nacre (ac or A) \na unit of area used for measuring real estate in English-speaking countries. "Acre," an Old English word meaning a field, is derived from the Latin ager and Greek agros, also meaning a field. The acre was originally defined as the area that could be plowed in a day by a yoke of oxen. It was in use in England at least as early as the eighth century, and by the end of the ninth century it was generally understood to be the area of a field one furlong (40 rods or 10 chains) long by 4 rods (or 1 chain) wide. Thus an acre is 10 square chains, 160 square rods, 43 560 square feet or 4840 square yards. There are exactly 640 acres in a square mile. In metric countries the unit corresponding to the acre is the hectare, which is 10,000 square meters (the area of a square 100 meters on each side). One acre is equal to 0.404 687 3 hectare. Among traditional European land area units, the acre is typical in being defined as a day's work but unusual in not being visualized as the area of a square. Similar units include the French journal, north German and Dutch morgen, south German and Swiss juchart, Austrian joch, and Czech jitro.
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I found a reference that says it's equal to 1000 sq meters.\n\nIt was on a Palastinian web site.