Tính tỉ số lượng giác của góc nhọn :

a) Cho ΔABC , AB = 15cm, AC = 20cm , Â = 90°. Tính tỉ số lượng giác góc B , góc C?

b) Cho ΔABC , Â = 90°, góc B = 45° . Tính tỉ số lượng giác góc 45°

c) Cho ΔABC , Â = 90°, góc B = 60° . Tính tỉ số lượng giác góc 60° , 30° ?

d) Cho hình vuông ABCD cạnh a , M trung điểm BC , N trung điểm CD . Tính tỉ số lượng giác góc MAN ?

Giúp tớ. Mai kiểm tra rồi

Thuyết minh về con trâu

Văn vừa thôi ạ nhưng đừng dài quá

Thank

Nghị luận văn bản Ngắm Trăng - Tức cảnh Pác Pó

Bạn nào có đoạn văn tiếng anh unit 6 và unit 7 , unit 8 của tập 2 lớp 8 không ạ?

I.

1. The weather is fine , but Thu is still bringing a raincoat with her.

=> Although__________________

2. "Do your homework , son", said the mother.

=> The mother told___________

3. No other members in thr class are as tall as Lucie is.

=> Lucie is the_______________

4. When was the last time you watched an action movie?

=> When did________________

4. "What time does your class start?" she asked her son.

-> She asked__________________

II. Imagine that you have recently visited a place of interest . In about 80 - 100 words, write a paragraph about your trip. Your paragraph may include:

When and where you went

How you got there

Who you went with

What the place was like

What you did there

Your impression of the place

I.

1. Nga said: " I am going to visit my grandmother next weekend"

=> Nga said that..........

2. The doctor is working at Bach Mai hospital . You met him yesterday

=> The doctor whow.........

3. Someone has stolen the picture

=> The picture.....................

4. In spite of her sickness, Mary insisted on going to work

=> Although Mary...................

5. He had scarcely put the phone down when the doorbell rang.

=> Scarcely..............................

II. Imagine you are now on vacation in a certain place in Viet Nam . In about 80 - 100 words, write a complete letter to your family about your trip.

You letter should include:

1. Where are you now? How did you get there?

2. Who did you meet at the station/ railway station/ airport...?

3. What have you done?

- What places have you visited?

- who have you met?

- What kinds of food have you tried?

- What souvenirs have you bought?

4. How do you feel now ?

5. What do you think interest you most ?

6. When are you returning home ?/ who do you want to pick you up?

III.

1. People throw thousands of tons of rubbish in to the sea.

=> Thousands of tons.................

2. We spent five hours redecorating our house before Tet.

=> It.............................

3. Jane finally managed to get a job.

=> Jane finally succeeded.........

4. She is too young to see that film.

=> She is not old...............

5. Although the team played well, they lost.

=> Despite................

IV. Imagine you visited your relatives last week . Write a letter (about 80 - 120 words) to your pen pal. Follow the guidelines.

-When did you visit...?

- Who met you at the bus/train/airport...?

- Where did you stay/

- What did you do in..........?

- What interested you most?

- How do you feel now?

Viết một bức thư : Đấu tranh cho một thế giới hòa bình

Mai nộp rồi. Help . Thank

Đặt tên cho văn bản rồi giải thích vì sao ?

Helpp mai nộp rồi. Thank

Viết một bức thư : Đấu tranh cho một thế giới hòa bình

Giúpp mình

Nghị luận văn bản Ngắm Trăng - Tức cảnh Pác Bó

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