Cho tam giác ABC nhọn, 3 đường cao AD, BE, CF cắt nhau tại H. c) Từ D vẽ DM vuông góc AB, DN vuông góc AC. CmTam giác AMN đồ dạng vói ACB Cm: MN//EF.

Các bn giải giúp mình bài 3 câu d)

.Thức ăn vật nuôi là gì?Nêu nguồn gốc của thức ăn vật nuôi? Cho VD

giúp em trường hợp này vs ạ hướng dãn chi tiết nha : làm sao để thank màu vẽ trở lại ạ lỡ xóa mất nhanh nha mấy pro dùng meding bang

Cuối HK II lớp 6B có 35 học sinh gồm 3 loại: Gioi,Khá , Trung bình .Trong đó số HSG bằng 40 phần trăm số HS cả lớp . Số HS Khá bằng 9/7 số học sinh Giỏi .Tính số HS trung bình của lớp 6B?

Giúp mìn Phần Ví Dụ với:333 😥😥😥

bán cho mn 30 điểm có ai lấy không? nhưng có làm mới có ăn chứ làm giúp mk câu c và câu d nha mn, 2 câu a và b mk làm rồi chú ý: ko bắt buộc làm a b, chỉ cân câu c và câu d

Tại sao muốn giữ rau tươi, ta phải thường xuyên vảy nước vào rau?

Cho ΔABC vuông tại A có AB=15cm, AC=20cm,vẽ đường cao AH Chứng minh a) ΔHBA~ ΔABC b) Tính HC,BH,BC c) Gọi I,K lần lượt là hình chiếu của H lên cạnh AB và AC. CM: AI.AB=AI.AC

I. Odd one out. 1. a, played b, travelled c, planned d, watched 2. a, buffalo b, unhappy c, pollution d, structure 3. a, collection b, comic c, concert d, volunteer 4. a, bread b, really c, head d, death 5. a, walked b, crowded c, needed d, excited II. Matching. A B 1. When is the festival celebrated? 2. Where is the festival held? 3. How far is it from the capital city? 4. How long does it take to get there by car? 5. How often does the festival take place? 6. Why do people held this festival? 7. How do people celebrate this festival? 8. Who can attend this festival? 9. How much does it cost to attend this festival? 10. How many people attended this festival last year a. They throw tomatoes at each other. b. In Bunol, a small town in Spain. c. Twenty thousand people, I think. d. On last Wednesday of August. e. It’s free. You just join and have fun. f. To celebrate the tomato harvest. g. Anyone. However, small children shouldn’t come. h. About three hour and a half. i. Annually j. More than three hundred kilometers. III. Odd one out.( chọn1 từ không cùng nhóm ) 1. a, funny b, widen c, degree d, student 2. a, listen b, hover c, fasten d, describe 3. a, circle b, direct c, chaos d, cannon 4. a, festival b, disaster c, pavement d, station 5. a, attend b, perform c, gather d, discuss IV. Complete the following passage with these words. Fireworks parades festivities dancing costumes “ Carnaval ” is the most famous holiday in Brazil, and the biggest carnival in the world. Except for industrial production, retail establishments such as malls, and carnival- related businesses, the country stops completely for almost a week and (1) …………take place, day and night, mainly in coastal cities. There are lots of streets (2) …………with amazingly decorated lorries (called floats) and people dressed in colorful (3) ………… Everywhere you go there are samba bands playing and people (4) ………… Right through the night the festivities continue with more dancing and music and (5) …………displays which light up the night sky. The carnival attracts millions and millions of people, including foreigners, every year. V. Using the word given and other words, complete the second sentences so that it has similar meaning to the first. 1. The film was boring, wasn’t it? (interesting) -> The film …………………………………………………………………...it ? 2. We often played these games when we were small. (used) -> We …………………………………………………………………………… 3. What was the price of the first class ticket? -> How ………………………………………………………………………….? 4. What is the distance from the village to the beach? (it) -> How …………………………………………………………..…to the beach? 6. They will build a new school for poor children next month. -> A new school …………………………………………………………………… 7. They sell these chemicals everywhere in my hometown. ¬-> These chemicals ………………………………………………………………… 8. Some people will interview the new president on TV. -> The new president ………………………………………………………………. 9. They will widen the road to our village next year. -> The road ………………………………………………………………………… 10. He got the first prize at the competition. His mother is very happy. -> His mother ……………………………………………………………………… VI. Rearrange the words to make meaningful sentences. 1. festival/ a/ is/ South America/ in/ popular/ Carnival/. ……………………………………………………………………………………… 2. February/ takes/ in/ usually/ Carnival/ place/. ……………………………………………………………………………………… 3. year/ held/ Brazil/ in/ every/ is/ Rio Carnival. ……………………………………………………………………………………… 4. celebrate/ people/ do/ Mid- autumn/ when/ Festival? ……………………………………………………………………………………..? 5. Wesak/ to/ festival/ Buddha’s birthday/ religious/ is/ celebrate/a/. ……………………………………………………………………………………… VII. Make questions for the underlined parts. 1. I go to Da Lat Flower Festival every year because I love flowers. ……………………………………………………………………………………… 2. The Sea Festival is held in my country every summer. ……………………………………………………………………………………… 3. I took a lot of pictures when I went to Rio Carnival last year. ……………………………………………………………………………………… 4. Halloween is held on October 31st. ……………………………………………………………………………………… 5. The International Fireworks Festival takes place in Da Nang city. ……………………………………………………………………………………… VIII. Give the correct form of the words given. 1. Thanksgiving is a …………festival held in the USA and some other countries. (season) 2. The Carnival of Rio de Janeiro is a very …………festival. (fascinate) 3. We are having an interview with Mr. Phong, one of the Elephant Race ………… (organize) 4. I think it’s a good …………in this circumstance. (choose) 5. Vesak Day is a …………festival for those who follow Buddhism. (religion