This article popularly explains how to find the radius of a circle inscribed in a square. The theoretical material will help you understand all the issues related to the topic. After reading this text, you can easily solve similar problems in the future
Secondary education and schools 2024, September
After reading the material, the reader will understand that planimetry is not difficult at all. The article contains the most important theoretical information and the formulas necessary for solving specific problems. Important statements and properties of figures are laid out on the shelves
Volyn region (the map of Ukraine shown in this article shows its location) is located in the northwestern part of Ukraine, in the Polesie zone. Its northern part borders on Belarus (Brest region), the eastern part - on the Rivne region, the southern part - on the Lvov region, and the western part - on Poland
How often one hears the "growling" word "territory"! Read the article, and you will not only find out what a territory is, but also discover the secret of the origin of this word
In the topic of today's publication, consider the meaning of the phrase, at first glance, do not match the meaning of the words. So, what is an urgent request? What does she mean? And in what situations is it applicable? How to live consciously and take your life into your own hands? How to ask? And is it worth it?
One of the most ancient inhabitants of our planet are numerous species of mosses and lichens, covering large areas. These plants are related to algae, but there are significant differences between them
In schools, students often have problems memorizing poetry. This article will tell you how easy it is to learn a verse
All decisions made by the pedagogical council in a particular educational institution are recorded in an official document - the minutes of the teachers' council. Therefore, it must be compiled by certain people and in the approved form. Who and how should do it - read the article
Depending on what physical, chemical and mechanical properties a particular material has, its effective use is determined, since the same substance may not be suitable for different purposes. That is why the correct determination of these properties plays an important role in the study of objects
Every person is constantly surrounded by various geometric bodies. And sometimes it is necessary to make certain calculations in order to obtain the necessary information. One of these bodies is a cone. In addition to the fact that schoolchildren are engaged in calculating its various parameters in geometry lessons, in everyday life, such calculations may also sometimes be needed. One of these parameters is the length of the generatrix of the cone
From ancient times, people settled on the river banks. The Seine River in Paris was no exception, where a tribe of Gauls, known as the Parisians, appeared approximately in the third century BC. It should be noted that an important trade waterway passed through it, connecting the east with the Atlantic
The distinction between "company" and "campaign" only seems blurry at first glance, because both words are about people. The secret of the difference between these concepts is simple. A company is always a community of people. A campaign is an action, military or peaceful, but it is an activity for a specific purpose. There is a big difference between a company and a campaign
Several educational programs have been specially developed for elementary school. One of them is called "Promising Elementary School". What feedback do you have from parents and teachers about this program? Why is "Perspective" gaining more and more popularity?
The influence of man on the river is becoming more and more noticeable every year. The ecological situation in the country is deteriorating due to human pollution of nearby rivers
The third largest continent of our beautiful planet Earth - North America - surprises with an alliance of civilization and untouched nature. In the immediate vicinity of densely populated areas, natural conditions have been preserved in their original form: hot deserts, wild coasts, fertile prairies, wild valleys. Here you can see the lakes of North America - the largest and most majestic in the world
The list of Latin American countries and their capitals is necessary for both a person interested in geography and a traveler who is going to visit these places
Oil production in Canada ranks second compared to other countries. Let's talk about the minerals of Canada in this article
The rivers of North America can rightly be called great. They have long attracted travelers with their natural beauty
The climate of hot countries has long attracted the inhabitants of northern latitudes. From this article we will find out which is the hottest country in the world
Evolution is the natural development of any environmental processes, which include genetic mutations of animal populations, adaptation, the formation of new and extinction of old species, changes in individual ecosystems and, consequently, the entire biosphere as a whole
The word "cult" is an ambiguous adjective derived from the noun "cult". This article discusses all three meanings of this term with a detailed explanation. In addition, appropriate examples of usage are given for each case
This article explains what prepositions of time exist in English and how to use them correctly. Each of their prepositions is described separately, rules and examples of use are given
This article explains when to write "besides" or "besides". A number of rules for continuous and separate spelling are given, as well as corresponding examples of the use of these words in sentences. Several ways are explained on how to distinguish "besides" from "besides"
As a rule, we call a certain territory a country. But the country is a term that is used not only in the political sphere. It also refers to culture, history, and physical geography. What is a country? How is it different from the state?
From the earliest times, people have been seriously interested in the question of how it is most convenient to compare quantities expressed in different values. And it's not just natural curiosity. The man of the most ancient terrestrial civilizations attached purely applied significance to this rather difficult matter
Mikhail Vasilyevich Lomonosov did a lot for the development of Russian literature. In his work, the great Russian philologist relied on the lyrical genre of ode
In April, the time comes when the school gives teachers and students the opportunity to rest. Spring break comes at the same time as the spring drop and the melting of snow. How are they different from autumn, winter or summer holidays? Such a break gives tired schoolchildren the opportunity to gain strength for the last breakthrough in their studies. And for many parents during this period, the question arises of what to do with their fidgets during spring holidays
The Volga Delta is located in the Astrakhan region, approximately 46 kilometers north of Astrakhan itself. It is the most extensive river lowland in Europe and covers about 12,000 square kilometers
Have you ever visited a state in Central Asia called Tajikistan? Its capital, Dushanbe, is surrounded by green hills and flowering foothills. A fabulous panorama opens up to the gaze of those who fly here on vacation or for work
The concept of author's punctuation often haunts the minds of editors and proofreaders. In what cases should deliberately changed punctuation be preserved in this form? Where is the thin line between the author's intention and banal illiteracy? What is author's punctuation? Let's try to understand this article
What is a hill? And how is it different from a normal mountain? In our article we will try to answer this difficult geographical question
For those children who find it difficult to study due to existing he alth problems, there are special educational institutions or remedial classes are opened in a regular school
Warsaw is the capital of Poland. It is the largest city in the country in terms of area and population. After the fire in the Wawel Castle, King Sigismund III ordered to transfer his residence to Warsaw
Often, each of us had to deal with people who seemed to be smiling, but it was felt that they had one more bottom, that is, they cannot be trusted. Consider today the expression "keep a stone in your bosom", because it just suits such individuals
A trilogy is the ideal form of a literary work (according to book lovers, real "bookworms"). During its reading, you can have time to get used to the characters, and form your own opinion about them, and feel the plot; and at the same time, the atmosphere will not get bored, the characters' characters will not fade, and the intrigue will not seem "far-fetched"
From the very beginning of its existence, only the best teachers, experts in their field, famous artists and sculptors worked in the Art School. The first director of the school was K.M. Lepilov, student of Ilya Repin, professor at the Academy of Arts. Other teachers were no less eminent: P.S. Naumov, student of D. Kardovsky, L.F. Ovsyannikov, student of V. Mate
A book is a magical ship that can take the reader to other worlds to mysterious horizons and to very vivid life situations. When a person feels bad, he can read positive literature. If you suddenly want adventure, then stories filled with a sharp plot will come to the rescue
In the 17th century, the natural resource base of the Russian economy was formed mainly at the expense of forests and cultivated land. By the 19th century, iron ore and coal had come to the fore. At present, one can observe an increase in the production of oil, non-ferrous metals, and gas. Untouched landscapes suitable for recreation, rare reserves, nuclear raw materials, fresh water are becoming increasingly important today
USA and Canada are the two states of North America. Canada ranks second in terms of area after Russia, the US is fourth after China. Despite the neighborhood, these countries are very different from each other. Although the United States is considered the leader of the world economy, in terms of aggregate indicators, the standard of living in America is lower than that of its northern neighbor
At different times, multiple attempts were made to define the concept of "extremism". In fact, this is a very complex phenomenon that is difficult to characterize. An extremist is a person who commits defiantly harsh actions to resolve a dispute or conflict