Đáy lớn của hình thang đó là : 

15 : 1/2 = 30 ( cm )

Chiều cao hình thang đó là :

30 : 3 = 10 ( cm )

Diện tích hình thang đó là :

( 30 + 15 ) x 10 : 2 = 225 ( cm²)

ĐS : 225 cm²

dịch:bạn đang đọc nha! HT

yes i am

My name is Minh. I have a friend is Phong. Today, I am describing Phong. He is tall and intelligent. He can do a lot of things such as: clean his house, cook, play sports,....., in my opinion he doesn't have anything that he can't do. I really appreciate Phong.

@minhnguvn

Today i will describing about my friend , his nam is Dai . He is tall , kind and very  intelligent. I have known him for 4 years in the English centre . Now , i and Dai are in class 10A1 . He is very good at math , so i often ask him when i have problems with my exercise. He loves playing football and playing computer games . He can play a lot of sports such as : volleyball , swimming , football , ... But he can't play ping pong . When i ask him why , he said : " it is very hard to play " 

2. visit

3. play

4. works

5. doesn't work

6. don't speak

7. doesn't go

8. don't clean

9. doesn't ride

10. doesn't work

11. Does - make

12. Does - write

13. Does - speak

14. Does - phone

15. Does - play

Put the correct verb in present simple :

1. I usually go (go) to school.

2. They  visit   (visit) us often.

3. You play  (play) basketball once a week.

4. Tom works (work) every day.

5. My father doesn't work (not work) at school.

6. You don't speak (not speak) English.

7. He doesn't go (not go) home late.

8. They don't clean ( not clean ) the bathroom.

9. Mai doesn't ride ( not ride ) her bike in the park.

10. Billy doesn't work (not work) in the supermarket.

11. Does her mother make (make) breakfast every day?

12. Does she write ( write ) a letter ?

13. Does Linda speak (speak) English?

14. Does  Peter phone (phone) his father on Sundays?

15. Does  Ann play (play) basketball very well?

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Có nghĩa là Bạn làm gì vào giờ giải lao nhé. Nhưng giải lao ở trường ý ko phải ở nhà nha, với lại giải lao ở nhà là FREE TIME.

Học TỐT NHÉ!

1. C

2. D

3. A

4. E

5. B

1 và C;  2 và D;  3 và A;  4 và E;  5 và B. Chúc bạn học tốt!

Chủ động theo công thức các thì

Bị động thì có tobe với Phân từ 2 hoặc 1 số từ như have trong htdt