Предмет: Геометрия, автор: fdr2007fdr

В треугольнике abc угол b равен 80 градусов на стороне BC отмечена точка D такая что AB=AD=CD на отрезке AC отмечена точка E такая что АВ=АЕ найлите угол СЕВ

Ответы

Автор ответа: RisKudo

Ответ:

110

Объяснение:

Приложения:

YazOleg: Как ты поняла, что adc - равносторонний? Если мы знаем только половину стороны ac

RisKudo: У нас по условию:

RisKudo: AB=AD=CD и AB=AE, следовательно AB=AD=CD=AB=AE

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III. Выберите соответствующую форму глагола во времени Present Simple (утвердительные предложения).

1. She … as an accountant for a big international company. She … her job a lot.
a. working/ like b. works/likes c. work/like
2. They usually … their holidays abroad.
a. spend b. spends c. spending
3. I … cooking and I often … for my friends.
a. like/cooking b. like/cook c. likes/ cooks
4. He ... too fast, and he often … speeding tickets.
a. drives/gets b. driving/getting c. drive/get
5. We often … in sports competitions.
a. take part b. takes part c. taking part

IV. Выберите соответствующую форму глагола во времени Present Simple (отрицательные и вопросительные предложения).

1. Where …he …?
a. does, work b. do, work c. works
2. … you … a lot?
a. Do, go out b. Does, go out c. go out
3. I … TV. I prefer the internet.
a. not to watch b. do not watch c. does not watch
4. She … Italian, she studies English.
a. do not study b. does not study c. not to study
5. He … any sport.
a. does not do b. not to do c. do not do

V. Выберите соответствующую форму глагола во времени Past Simple (утвердительные предложения).

1. I … to France last summer.
a. go b. gone c. went
2. He … a horror film last night.
a. watch b. watched c. watches
3. The children … too much ice cream last night.
a. eat b. ate c. eaten
4. They … very nice souvenirs from a duty free shop.
a. buy b. buying c. bought
5. I … a lot of money in a lottery yesterday.
a. won b. win c. winning

VI. Выберите соответствующую форму глагола во времени Past Simple (отрицательные и вопросительные предложения).

1. Where … you … for your summer holiday last year?
a. did, travel b. do, travel c. travelled
2. He … the answer, so he failed the test.
a. does not know b. did not know c. not knew
3. She … to speak to him yesterday. Do you know why?
a. do not want b. did not want c. does not want
4. He … me anything about his trip to Canada last week.
a. did not tell b. do not tell c. does not tell
5. Where … you … this photo?
a. found b. did, find c. does, find

VII. Выберите соответствующее вопросительное слово.

1. … were you late? – I was late because of the traffic jam.
a. Where b. Why c. How

2. … does it take you to get to work? – It takes me half an hour to get to work.
a. How much b. How many c. How long

3. … films do you like best? – I like action films.
a. Why b. What c. How many

4. … did you stay? – I stayed at a very nice hotel.
a. Where b. What c. How many

5. … does it cost? – It costs $ 100.
a. How long b. How much c. How many

VIII. Выберите соответствующую форму глагола во времени Simple (Present, Past or Future)

1. I … you tonight and give you all the details.
a. calls b. c. will call

2. Last night we … shopping and … a lot of new clothes.
a. will go/ will buy b. went/ bought c. go/ buy

3. I am a sales representative and I often … on business.
a. travelled b. travels c. travel

4. He wants to change jobs and yesterday he … a job interview at Megasoft.
a. has b. had c. will have

5. I usually … from 9 to 5, but I sometimes … overtime.
a. work/work b. works/works c. worked/worked

IX. Выберите личное, притяжательное или объектное местоимение.

1. Do … live with … parents?
a. you / you b. you / your c. your/ your
2. ... like … new house.
a. We / our b. Us / our c. We / ours
3. … told me his name, but … do not remember it.
a. He / I b. He / me c. Him / I
4. I always help …, but you never help ….
a. you/me b. your/me c. you/I
5. I never forget … birthday, but … always forgets mine.
a. she / she b. she / her c. her / she
6. … usually drives to work.
a. she b. her c. hers
7. He loves …, but she does not love ….
a. she/he b. her/him c. she/him
X. Выберите соответствующую форму прилагательного в сравнительной или превосходной степени сравнения.

1. The Pacific Ocean is … ocean on Earth.
a. the bigger b. bigger c. the biggest
2. Your task is …than mine.
a. more difficult b. the most difficult c. the more difficult
3. Which is … for you, speaking or understanding English?
a. easy b. easier c. the easier
4. Who is … person in the world?
a. richer b. the richer c. the richest
5. Which is … for you, having a well-paid or an interesting job?
a. more important b. the most important c. the more important

6. Indian food is … than British food.
a. spicy b. spicier c. the spiciest
7. Who is … person in the world?
a. the tallest b. taller c. the taller
8. What is … painting in the world?
a. the most expensive b. more expensive c. most expensive

XI. Выберите правильный перевод.
1. I have got as much money as you’ve got.
a. больше денег b. столько же денег c. много денег
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c. больше
3. The more you study, the more you know.
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c. Много, много
4. The sooner we start, the sooner we finish.
a. Чем быстрее, тем быстрее b. Все быстрее, и быстрее
c. Быстро, быстро

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