Cho tam giác ABC có AB=9cm,AC=12cm.Trên cạnh AB lấy điểm K,trên cạnh AC lấy điểm K sao cho AH=6cm,AK=8cm. a)chứng minh HK//BC b)cho biết BC=18cm.Tính HK c)Kẽ trung tuyến AM của tam giác ABC(M thuộc BC)AM cắt HK tại I.Chứng minh I là trung điểm của HK

XI. Read the email then answer the questions. From: Brett.walker149@gmail.com To: Subject: Re: sports Dear Brett Thanks for your email. You do lots of sports at school in Canada. I’d love to play ice hockey one day. We do lots of sports at our school too. We’ve got a swimming pool at school and our class go swimming every Wednesday. We also play tennis, volleyball and football, but football in Australia is different to soccer. You can touch the ball with your hands! There are lots of after- school sports clubs in Australia too. I go to a surfing club after school on Tuesdays and Thursdays. We go to the beach and learn how to surf. It’s great fun! Can you surf in your country? Write soon Rob 1. Where does Rob live? 2. How often does Rob go swimming? 3. Is football in Australia the same as soccer? 4. On what days of the week does Rob go to a surfing club? 5. Where does Rob go to learn how to surf? 6. Does Rob like surfing? XV. Use the prompts to write sentences. 1. We/ go/ skiing yesterday. 2. you/ watch/ the men’s basketball final/ TV/ last night? 3. I/ not play/ badminton/ last Sunday/ because/ I/ be/ ill. 4. Sue and her friends/ do/ yoga/ the gym/ now. 5. Last week/ we/ study/ how/ surf. It/ be/ very interesting. 6. He/ usually/ play/ football/ his friends/ Saturdays. 7. Where/ the children/ be/ yesterday morning? They/ be/ at the swimming pool. 8. His father/ teach/ him/ how/ play/ football/ a very young age.

Giải hộ e câu 3 vs e đang cần gấp ạ cho e cám ơn trước ạ

Ai làm được giúp mình nhé , mình sẽ vote 5sao + cảm ơn + vote câu trả lời hay nhất ạ Bài 1. Hãy phân tích giá trị của các biện pháp nghệ thuật được sử dụng trong khổ thơ sau : "Chiếc thuyền nhẹ hăng như con tuấn mã Phăng mái chèo mạnh mẽ vượt trường giang Cánh buồm giương to như mảnh hồn làng Rướn thân trắng bao la thâu góp gió" (Trích : Quê hương -Tế Hanh) Bài 2. Tiểu thuyết "Tắt đèn" của nhà văn Ngô Tất Tố có nhiều nhân vật , nhưng chị Dậu là một hình tượng trung tâm , là linh hồn của tác phẩm có giá trị hiện thực . Bởi chị Dậu là hình ảnh chân thực , đẹp đẽ của người phụ nữ nông dân Việt Nam trước cách mạng tháng 8 năm 1945 Bằng những hiểu biết của em về tác phẩm "Tắt đèn" của Ngô Tất Tố , hãy viết bài văn làm sáng tỏ nhận định trên

stiren, axetilen, etilen + dd brom ngắn gon thôi nha mn

Viết giúp mình đoạn mở bài cho bài văn miêu tả làng quê em trong những ngày nghỉ dịch covid 19

làm duy nhất bài 2 thôi ai nhanh đc 5*

ai rảnh thì vẽ hộ em với ạ, bài tập bắt phải vẽ lại hết

Bể cá dạng hình hộp chữ nhật có kích thước trong lòng bể là, dài 2,5m rộng 1,6m cao 1m mức nước trong bể cao bằng 1/5 chiều cao của bể tính thể tích mực nước

I. Use the correct form of the words in the brackets to complete the sentences 1. What a ....................... girl! (love) 2. Stop. Nam! It's ................... to be near the stove. (DANGER ) 3. Mr. Nam is working on a farm. He is a ................................ (FARM) 4. Tet is the most important ................... in Vietnam (CELEBRATE) II. Choose the best answer to complete the following sentences 1. I've played the piano ............................ . A. two years ago B, since 1995 C. before 1995 D. tomorrow 2. He ................. me about it last night. A. tells B. have told C. has told D. told 3. The meeting will ..................... in London next week. A. e held B. is held C. be hold D. are hold. 4. Bananas .................... to Europe every year. A. are exported B. exports C. is exported D. exported 5. She wishes she ....................... a palace now. A. owns B. owned C. is owning D. would own 6. My house ................................... broken into last night. A. are B. is C. was D. were 7. The details should ............................ carefully. A. is checked B. check C. was checked D. be checked 8. If Mary doesn't improve in math, we ........................... have to find a tutor for her. A. will B. can C. should D. would 9. The journey to the village is very .................... . A. interested B. interesting C. disinterested D. interest 10. I don't like using the internet because it has some.................. . A. benefits B. advantages C. limitations D. disadvantages III. Complete the sentences with the correct form of the verbs in brackets. Use the Past Simple or the Present Perfect Simple. 1. John .................... (not call) me recently. 2. They onth.........................(buy) a new car las. 3. The teacher ............................. (not return) the tests yet. 4. How long ................. She ..................... (know) about this problem? 5. .................... you ever ...................... ( hear ) such an unbelievable story? 6. When I was a child, I .................... (live) in England for two years. IV. Complete the second sentence so that it has the same meaning as the first one. 1.I'm sorry, I can't help you. -> I wish ....................................... 2. Unless we reduce the use of water and electricity we will have to pay more this month. -> If we ............................................................................................................................... 3 My father was sick yesterday. -> I wish ........................................... 4. They were late for school because it rained heavily . ->It rained ...................................................................... 5. The flat's very noisy, but we enjoy living there. -> Even though....................................................... V. Read the passage and then decide whether the statements that follow are true or false. Write True or False in your answersheet. Late in the afternoon, the boys put up their tent in the middle of a field. As soon as this was done, they cooked the meal over an open fire. They were all hungry and the food smelt good. After a wonderful meal, they told stories and sang songs by the camp fire. But some time later it began to rain. The boys felt tired so they put out the fire and crept into their tent. Their sleeping-bags were warm and comfortable, so they all slept soundly. In the middle of the night, two boys woke up and began shouting The tent was full of the water! They all leapt of their sleeping-bags and hurried outside. It was raining heavily and they und that a stream had formed in the field. The stream wound its way across the field and then flowed right under their tent! ____________l/ the food smelt good, so the boy were thirsty ____________2/ they played games and sang songs after they had a wonderful meal. ____________3/ The boys slept well and deeply in a comfortable and warm sleeping-bags. ____________4/ The tent was full of the water, Which made the boys wake up