У циліндрі паралельно його осі на відстані 6 см від неї проведено переріз, площа якого 160 см кв.Обчисоіть радіус основи цилиндра, якщо його висота дорівнює 10 см.
The advent of computers has committed a revolution in our lives. They have changed our approach to work, learning, leisure and other aspects of life. Today, computers are used in all areas of life, such as medicine used computed tomography, transport - traffic management, science - during calculations and modeling processes. Making computers led to the emergence of the Internet, which is a worldwide computer network, allows you to quickly find the required information, and connect with other people. I also use a computer and the Internet. In memory of my computer are placed encyclopedias, dictionaries and other reference materials that I use in the preparation of homework. On my computer and installed the game, helps develop reaction, train memory, thinking, cartoons, feature films and documentaries. I recently saw the movie "Dubrovsky", soon we are going to study this story of Alexander Pushkin in literature classes. In addition to the advantages the computer and the Internet have their own disadvantages. On the Internet you can find abstracts on any topic and in any subject, instead of to write it. Also, the Internet has a wealth of information is of no value. Too long stay in front of a computer monitor spoils vision, posture causes fatigue. Long and regular passion for computer games can lead to gambling addiction that causes aggression and negative impact on health. Computer - important invention, and it is necessary to learn to use it properly. Should receive only the information that is necessary for the independent exercise of tasks and to shift to online essay writing and essays. It is necessary to limit the computing time available for games and entertainment.
1) My friend Liz watches both new films and old ones, she is a great cinema lover.
2) The old part of the town is situated on one bank of the river and the new part on the other one.
3) We always try to buy fresh vegetables, nobody wants old or spoiled ones.
4) This tea is cold, I hate cold tea.
5) Their telephone number has been changed and I don't know their new one.
6) They say that to eat dark chocolate is healthier than to eat milk chocolate.
7) Everyone knows that gold rings are more expensive than silver ones.
8) Of all my friends I prefer those ones who have the same interests as me.
Нельзя заменить существительные tea (чай) и chocolate (шоколад), так как они неисчисляемые существительные.