Предмет: Геометрия, автор: рома1071

исследуйте взаимное расположение прямой и окружности в зависимости от соотношения между радиусом окружности и расстоянием от ее центра до прямой сформулируйте полученные выводы

Ответы

Автор ответа: mironovak2017

Если радиус окружности равен расстоянию от центра до прямой, то прямая является касательной к данной окружности
Если радиус окружности меньше чем расстояние, то прямая не пересекает окружность
Если радиус окружности больше чем расстояние, то прямая пересекает окружность в двух точках.

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1. She ...badminton on weekends *

is

plays

can

has

2. I have a cat. ...cat is very kind *

a

an

the

---

3. Sam can ...dolls *

making

to make

makes

make

4. Actors work ... *

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5. ...your friends like cats? *

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Do

6. I have got two uncles. ...names are Tom and Robert *

His

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My

Our

7. We often go to the stadium... *

to watch TV

to run and jump

to take a shower

to study

8. Are ...beautiful women? *

it

he

they

she

9. There are three ...in the box *

mices

mouses

mouse

mice

10. His wife usually...at 8 o'clock in the morning. She is very lazy *

don't get up

isn't get up

doesn't get up

not get up

11. Is your sister...TV now? *

watching

watch

to watch

watches

12. When does your granny ...go shopping? *

yesterday

usually

just

tomorrow

13. ...you buy this pencil case last Sunday? *

Do

Are

Was

Did

14. The Ivanovs ...this house last year *

don't have

didn't had

didn't have

not have

15. Vera Ivanovna ...her pupils in this classroom two days ago *

sees

see

to see

saw

16. ...your dog hungry yesterday? *

Were

Was

Does

Is

17. Our living room is upstarirs on the ...floor *

three

free

third

threeth

18. The fox's nose is ...than the rabbit's nose *

longer

more long

the longer

more longer

19. Their birds are .... We like them very much *

very nicest

the nicest

the most nice

more nice

20. It is ...difficult exercise I have ever done *

more

most

the most

a most

21. There aren't ...warm clothes in her room *

some

any

little

much

22. Where ...my brown boots, mum? *

are

is

have

be

23. Is there ...bread at home?- Yes, there is some *

many

any

few

a few

24. Next year the Sidorovs ...a new car *

buy

to buy

buys

will buy

25. The boys ...skate on the skating rink tomorrow. It will be very cold *

shall not

willn't

won't

aren't

26. Have you ever...fish? *

eat

eated

eaten

eating

27. The pupils have already ...three songs at the concert *

sung

sing

singed

singing

28. The children have just...a very interesting film in the cinema *

watch

watching

are watch

watched

29. The dog's ....are white *

tooth

teeth

toothes

tuth

30. I don't want to buy ...trousers *

this

these

that

1. She ...badminton on weekends *

is

plays

can

has

2. I have a cat. ...cat is very kind *

a

an

the

---

3. Sam can ...dolls *

making

to make

makes

make

4. Actors work ... *

at school

in the shop

in the theatre

in a hospital

5. ...your friends like cats? *

Can

Is

Does

Do

6. I have got two uncles. ...names are Tom and Robert *

His

Their

My

Our

7. We often go to the stadium... *

to watch TV

to run and jump

to take a shower

to study

8. Are ...beautiful women? *

it

he

they

she

9. There are three ...in the box *

mices

mouses

mouse

mice

10. His wife usually...at 8 o'clock in the morning. She is very lazy *

don't get up

isn't get up

doesn't get up

not get up

11. Is your sister...TV now? *

watching

watch

to watch

watches

12. When does your granny ...go shopping? *

yesterday

usually

just

tomorrow

13. ...you buy this pencil case last Sunday? *

Do

Are

Was

Did

14. The Ivanovs ...this house last year *

don't have

didn't had

didn't have

not have

15. Vera Ivanovna ...her pupils in this classroom two days ago *

sees

see

to see

saw

16. ...your dog hungry yesterday? *

Were

Was

Does

Is

17. Our living room is upstarirs on the ...floor *

three

free

third

threeth

18. The fox's nose is ...than the rabbit's nose *

longer

more long

the longer

more longer

19. Their birds are .... We like them very much *

very nicest

the nicest

the most nice

more nice

20. It is ...difficult exercise I have ever done *

more

most

the most

a most

21. There aren't ...warm clothes in her room *

some

any

little

much

22. Where ...my brown boots, mum? *

are

is

have

be

23. Is there ...bread at home?- Yes, there is some *

many

any

few

a few

24. Next year the Sidorovs ...a new car *

buy

to buy

buys

will buy

25. The boys ...skate on the skating rink tomorrow. It will be very cold *

shall not

willn't

won't

aren't

26. Have you ever...fish? *

eat

eated

eaten

eating

27. The pupils have already ...three songs at the concert *

sung

sing

singed

singing

28. The children have just...a very interesting film in the cinema *

watch

watching

are watch

watched

29. The dog's ....are white *

tooth

teeth

toothes

tuth

30. I don't want to buy ...trousers *

this

these

that