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Дан цилиндр с радиусом основания 3м и высотой 10м. Найдите диагональ осевого сечения цилиндра. Ответ 10м
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Предмет:
Геометрия -
Автор:
lauryntyler - 5 лет назад
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Ответы 1
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R=3м D=6м
Получается прямоугольный треугольник с катетами 6 и 10
Диагональ осевого сечения гипотенуза. По теореме Пифагора
c^2=a^2+b^2 => c=(a^2+b^2)^0,5 => (36+100)^0,5 ≈11,66м
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Автор:
jonceud - 5 лет назад
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Помогите с решением заданий по английскому языку, пожалуйста
1. Make a zero conditional sentence using the words and translate them into Russian. Model: water / boil / heat / to 100 degrees – Water boils if you heat it to 100 degrees.
1. you / not / eat / you / die
2. if / no / rain / the grass / not / grow
3. my daughter / eat / too much chocolate / she /get / sick
4. iron / rust / it / get / wet
5. ice / float / you / drop / it / in water
2. Define whether it is the First or Second Conditional? Put the verbs in brackets into the correct tense.
1. If he (run), he'll get there in time.
2. They would be rather offended if I (not go) to see them.
3. If you took more exercise, you (feel) better.
4. If it (stop) snowing, we can go skiing.
5. If I was offered a job, 1 think I (take) it.
6. I'm sure Ann will lend you the money. I'd be very surprised if she (refuse).
7. If you (not go) away, I'll send for the police.
8. If I sold my car, I (not get) much money for it.
9. The police (arrest) him if they catch him.
10. We (not have) any money if we didn't work.
11. Tell Mary to ring me up if you (see) her.
12. What would happen if I (not come)?
13. If he (like) the house, will he buy it?
14. Carol gave me this ring. She (be) very upset if I lost it.
15. Our friends are expecting us. They will be disappointed if we (not come).
3. Define whether it is the Second or Third Conditional? Put the verbs in brackets into the correct tense.
1. If you (not be) busy, we could go for a walk.
2. If I (have) enough money, I would have taken a taxi.
3. If I were you, I (buy) a new suit.
4. If I (be) interested in the film, I would have gone to the cinema.
5. If we (not take) the wrong turning, we wouldn't have arrived late.
6. If he had more time, he (take) up tennis.
7. You could have come first if you (run) faster.
8. If she (not have) a car, we would have to go by bus.
9. What you (do) if you lost your job?
10. If I (not feel) tired, I would have gone to bed later.
11. If Bruce had asked me, I (say) 'yes'.
12. If I (not take) an umbrella, I would have got wet.
13. If he knew that it was dangerous, he (not come).
14. If someone (give) you a helicopter, what would you do with it?
15. They (not miss) the plane if they hadn't woken up late
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Предмет:
Английский язык -
Автор:
mónica2kqp - 5 лет назад
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Ответов:
1 -
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