Предмет: Математика, автор: 17Dina71

Диаметр окружности равен 13 см. Значение числа π≈3,14.
Определи длину C этой окружности (с точностью до сотых).

Ответы

Автор ответа: juliika2001
1

С =2пR= пD= 3.14 x 13 = 40.82 см
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Ответьте на вопросы.

People all over the world are fond of sports and games. Sport makes people healthy, keeps them fil, more organised and better disciplined. It unites people of different classes and nationalities. Many people do sports on their personal initiative. They go in for skiing, skating, table tennis, swimming, volleyball, football, basketdall, body-building etc.


All necessary facilities are provided for them: stadiums, sport swimming pools, skating-rinks. football fields. But, of course, one has to pay for there services.


Sport is paid much attention to in our schools and lnstitutes. Physical training is a compulsory subject. Different sports and games are popular with my classmates. All my friends go in for different kinds of sport, such as waler sports (that is swimming, sailing, rowing), gymnastics, horseracing, wrestling, fencing, weightlifting, boxing, football, basketball, volleyball, etc.


And now a few words about our physical training lessons at school. In summer they are held out-of-doors. When it is cold outside the lessons are held indoors in our school gymnasium.


Professional sport is also paid much attention to in our country in the city where I live. there are different sport societies, clubs and sport schools. Practically all kinds of sports are popular in our country, but gymnastics and tennis enjoy the greatest popularity.


The most popular kinds of sports in the United States are baseball, dasketball and American football. In England the popular kinds of sports are golf and rugby. Englishmen like football too. It is their national kind of sports.


Ответить на вопросы:


1. Why do people all over the world are fond of sports and games?


2. What are summer sports and what are winter sports?


3. What kinds of sports are popular with your friends and schoolmates?


4. What can you say about physical training lessons at your school?


5. What kinds of sport are the most popular in our country?


6. What are the most popular kinds of sport in America and England?


7. What other American or English sports do you know?


8. Are American football and baseball popular in Russia? Why and why not?


9. What do you do to be fit?
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