Hello, dear readers of the KtoNaNovenkogo.ru blog. In this article we will explain in detail what a HECTARE is.
Many people know that this is the name for the measure of calculating the area of any territory. And they know that this is quite a large value.
But in most cases, even these people find it difficult to name the exact definition and size of a hectare.
Calculation of square meters of area
For calculations you will need a measuring tape or tape measure. They are used to take measurements of the sides of a geometric figure of the correct shape (rectangle, square and other options). Then everything is multiplied. After the results obtained, centimeters must be converted to meters.
Algorithm:
- Take a tape or tape measure, on the canvas of which divisions are applied in the same measurement system - centimeters or meters.
- Measure the length of an object in two-dimensional space - a plane.
- Measure the width of the object. The edge of the measuring device with a zero value is positioned at an angle of 90° with respect to the length in the corner of the figure.
- If it is impossible to measure at one time, measure part of the plane to the end of the tape measure (tape), put a mark with a pencil or marker, and start measuring the next section from there. Continue to the end of the entire length or width. Write down the numbers and add them up.
- Write down all obtained values.
- Using a calculator, the digital value of the length is multiplied by the digital value of the width to obtain a number indicating the area.
Where are hectares and acres used?
The standard use of a hectare in Russia is to measure the area of land. However, the official SI units – square meters – are also used for the same purposes .
In most cases, the calculation of land area in hectares is carried out to determine the land tax and land share. To do this, after measuring the area, calculate its area and convert it into points, which are converted into a personal coefficient. Calculation of area in hectares will also be needed in the areas of land planning, urban planning and forestry.
Sports cannot do without measuring area in hectares. For example, the calculation of the field area of the well-known and beloved American game - rugby - occurs exclusively in hectares. An equally interesting fact: the football field where international matches are held has a recommended size of 105 by 86 meters and an area of 0.714 hectares. The calculation of the area of a plot in acres is used for the sale and purchase of land.
Link to online calculator: https://kalkulator.pro/are-to-hectare.html
Converting other area units
Foreign units of measurement also denote square meter. Only for this purpose they should be converted correctly. This can be done using a simple mathematical calculation:
- Square feet - multiply by 0.093 (exact rate - 0.093903). Measure the length and width in feet and multiply them. Get a square foot. One foot is equal to 0.093 square meters. The result in square feet is multiplied by 0.093 to get a square meter. Example: 13.41 ft x 0.093 = 1.24713 sq. m. Rounding – 1.25 sq. m.
- Yards - multiply by 0.84 (exact course - 0.83613). Everyone does the same thing as when converting from square feet to square meters. Example: 24.7 yard x 0.84 = 20.748 sq. m. Rounding – 20.75 sq. m.
- Acres - multiplied by 4050 (exact rate - 4046.9). We repeat the procedure. Example: 55.3 acres x 4050 = 224014.77 sq. m. Rounding – 224015 sq. m.
Quantitatively, foot or yard values always appear larger than meter values.
They rely on the table when converting from one unit of measurement to another Source 3mu.ru
Origin of the word "hectare"
The term HECTARE has two roots. One of the "hects" comes from the ancient Greek "ἑκατόν", which translated means " hundred ". And the second root is “ ar ”.
AR is another so-called non-systemic unit for calculating area, which is also a square , but with a side length of 10 meters . Thus, its area is:
10 * 10 = 100
This, by the way, is where the more familiar and popular name for “macaw” comes from - SOTKA.
That is, it turns out that the term HECTARE means “one hundred acres” . And this is exactly the same 10 thousand square meters that we have already talked about.
Calculating the area of a complex figure
To find the area value of a complex figure, you must first divide it into simpler geometric shapes - triangle, rectangle, square. The contours of the figures should have clear boundaries that do not overlap each other, but only touch. Find the area of each figure and then add the results together.
A complex figure is divided into simple ones, their areas are found, and the resulting values are summed up. Source ds04.infourok.ru
You can find the area of a triangle with a right angle in a simple way:
- measure the sides forming an angle of 90°;
- multiply numbers;
- divide by 2 and get the square meters of the triangle.
Other types of triangles can be considered by visually drawing a line from any vertex that forms a right angle on any side. You can find the area of a circle using the formula: π x R2, where π is a constant (3.1415926535), and R2 is the digital value of the radius to the second power.
Area of a circle - the number “Pi” is multiplied by the value of the radius to the second power Source 900igr.net
How many acres on a plot of 1 hectare - calculation using an example
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The weave or are, as a unit for measuring area, began to be used in 1917. The first name was the original one, the second one appeared as a common name, but soon became more widespread. This was led to by the emergence of dacha plots, the famous “six hundred square meters”.
What is a hundred? This is an intermediate unit between square meters and hectares, an allotment of 100 square meters.
How many acres are in one hectare? Hectares to hundredths ratio is 1:100. This means that there are 100 acres in 1 hectare. In order to find out how many acres are in the area calculated in hectares, you need to multiply the hectares by 100. Let's do some calculations. In an allotment of 112 hectares there will be 112*100=11,200 acres, and in 0.25 hectares - 0.25*100=25 acres.
These calculations are quite simple, the main thing is to be careful and not make a mistake in the number of zeros or digits after the decimal point.
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But a novice farmer cannot do without making accurate calculations in order not to suffer financial losses and correctly calculate the future expected harvest. When choosing a site for construction or purchasing expensive land, there is a need to accurately calculate the area without allowing for minimal errors.
In this case, you should contact land cadastral companies and order the services of surveyors. The specialist conducts a geodetic survey with a special device and issues a confirming document based on it. This service is convenient when the area is complex, with sharp corners, creases, and buildings on the site.
What is weaving
Sotka is a colloquial word derived from the numeral “hundred”. When we say “one hundred square meters of land,” we mean a plot whose area is 1ar.
Ar (Russian designation a) is a unit by which area is measured. Ap is not included in the international SI system and implies the area of an equilateral quadrilateral with a side of 10 meters. It is the official unit for measuring area in the French Republic.
1 a = 100 square meters = 0.01 hectares.
To imagine this distance, take 12 to 14 medium steps, then make a 90-degree turn and repeat. The resulting square is one hundred square meters of land. A hundredth of something is also called a hundredth.
It is convenient to use this type of land calculation both during the sale and construction, and when sowing garden plots.
Interesting facts about the square
For the first time, people thought about the need to calculate area when they began to engage in farming, housing construction and other activities. To carry out measurements, each section began to be divided into several parts in the form of triangles and rectangles.
Isoperimetric problems are used to calculate the minimum and maximum area values. Their goal is to find a geometric figure that will have the largest size among all others with the same perimeter.
The word "isoperimetric" comes from the words "isos" (Greek for "equal") and "perimeter" - the total length of all sides of a figure or the length of the line that marks its boundaries on a plane.
The solution to such a problem is at the same time an algorithm for carrying out calculations when finding a figure with the smallest perimeter among all equal figures.
Theorem on properties of areas
The formulation of the most interesting theorem is: “Of all flat figures of the same perimeter, the circle has the largest area.” According to the Swiss mathematician Jacob Steiner, this is a fundamental statement in geometry.
According to the isoperimetric theorem, of all figures with the same perimeter, the circle will have the largest area. If, on the contrary, we compare figures with the same area, then the circle has the smallest perimeter.
Geographical features with the largest area
There are several objects in the world that occupy the largest area, as well as the most extensive territory, where a major oil spill occurred.
The largest body of water
The largest enclosed body of water (lake) in the world is considered to be the Caspian Sea, which is located on the line connecting the European and Asian parts of Eurasia. The water surface extends over 371 thousand km². The length of the lake is approximately 1200 km, and the width varies from 195 to 435 kilometers. The salt content of water ranges from 0.05% to 13%. In some places the depth reaches 1025 m.
The coastal zone extends across the territory of several states: Russia, Kazakhstan, Azerbaijan, Iran, Turkmenistan. Each of these countries has 15 nautical miles of territorial waters and 10 nautical miles for fishing. Several large rivers flow into the Caspian Sea, such as the Volga, Sulak, Terek, Ural and Emba. To the east is the salt lake Kara Bogaz Gol.
Tibetan plateau
A plateau is understood as a large mountainous area located at an altitude of one kilometer or more. Most of this area is made up of flat surfaces and plateaus. In some cases, this monotonous relief is interrupted by various valleys, as well as folds resembling waves.
The Tibetan Plateau is considered the largest on earth, its surface area is about 2 million square kilometers. It is located in southern Asia north of the Himalayas. Its average height is about 4800 meters.
The largest island in the world
There are almost 2000 islands of different sizes on the planet. Each has a specific geographical location, and therefore its own climatic characteristics, flora and fauna, and terrain. The largest island in the world is Greenland, which occupies about 2,130,800 km².
Most of the island surface (81%) is occupied by ice cover, which is a huge layer. If it ever melts, it will lead to a rise in global sea levels of approximately 7 meters. The reasons for the low population density of this area are quite clear. The island has a very low population density - 0.028 people per 1 km². There are a total of 57,728 inhabitants.
Largest oil spill
One of the largest oil spills in the world occurred in 1991 in the Persian Gulf. This was an act of deliberate human action, and not some kind of natural disaster or random circumstance. The disaster was provoked by Iraqi soldiers retreating from Kuwait during a military operation for the purpose of revenge. They fired at oil rigs standing in the desert and opened wells and well valves.
As a result, about 300 gallons of oil entered the waters of the Persian Gulf. Significant environmental damage was caused, the coastal areas of Kuwait and Saudi Arabia were heavily polluted, and many marine life died, including representatives of rare endangered species.
