Предмет: Математика, автор: enlikenlik22

пожолуйста помогите очень нужно ​

Приложения:

s1341: Перевод на русский:
s1341: 1273. на рис. 8.12 изображена точка а с центром и ее
двух пересекающихся между собой точек, в которых
круг нарисован. Центр Точка А
диаметр окружности 10 см,
окружности, центром которой является точка О
радиус 3 см. Четырехугольник АВОС
найди периметр.

Ответы

Автор ответа: Ellliss
0

Ответ: P=16 см

Пошаговое объяснение :

1) АВ=ВС=10/2=5 см - радиусы окружности с центром в точке А

2) ВО=СО=3см - радиусы окружности с центром в точке О

3) Р=22*(5+3)=16см - периметр АВОС

Приложения:
Интересные вопросы
Предмет: Английский язык, автор: gulnaz240899
1. Complete the sentences using the Present Simple of the verbs in brackets. (Use contractions in the negative: don’t, doesn’t.)

1. Brazil ….. (produce) a lot of coffee.
2. He ….. (not/come) from China. He ….. (come) from Singapore.
3. Monday ….. (come) after Sunday.
4. She ….. (study) classical violin at college, but she also ….. (play) in a pop band.
5. Al and Jo ….. (not/know) each other very well, but they always ….. (say) hello.
6. You ….. (not/look) very happy this morning.
7. I’ve got a very old car. It ….. (not/go) very fast and it ….. (make) a lot of noise.
8. I ….. (go) to the gym every Wednesday, but my brother ….. (go) every day.
9. He never ….. (do) his school homework on time!
10. I ….. (not/eat) meat or fish. I only ….. (eat) fruit and vegetables.

2. Complete the questions in the Present Simple. For example:
Does it rain much in England?
Yes, it rains a lot.

1. What time ….. usually get up?
I usually get up at about 7 o’clock.
2. How often ….. football?
He plays football about twice a week.
3. Where ….. ?
They come from California.
4. How much ….. ?
It costs about $1000.
5. ….. at the weekend?
They work on Saturday but not on Sunday.
6. ….. television very often?
No, she never watches television, but she often listens to the radio.

3. These sentences give incorrect information. Write correct sentences. Use the cues in brackets. For example:
The American President lives in Buckingham Palace.
(the White House) No, he doesn’t. He lives in the White House.

1. The Queen of England lives in the White House.
(Buckingham Palace) ……….
2. Water boils at 200 degrees Celsius.
(100) ……….
3. Rice grows in Spain.
(Japan) ……….
4. Spring comes after summer.
(before) ……….
5. People in Brazil speak Spanish.
(Portuguese) ……….
6. Rugby players play with a round ball.
(oval) ……….