user-avatar
nguyenutnho11
2 năm trước
Cho hình tam giác ABC có đáy BC bằng 12 cm chiều cao hạ từ A xuống BC bằng 50% độ dài BC .Trên AC lấy M sao cho AM = 1/2 MC trên BC lấy N sao cho BN = 2/3 BC .Nối MN,MB .So sánh diện tích tam giác MNC và diện tích tam giác AMB
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Read the following passage and mark the letter A, B or C on your answer sheet to indicate the correct answer to each of the questions. Smoking causes lung cancer, which is the number one cancer among men. Ninety percent of the people who get lung cancer die. Smoking is also the leading cause of mouth cancer, tongue cancer, and throat cancer. Many smokers have heart disease arid pneumonia. Smoking causes one million early deaths in the world every year. Smokers not only harm themselves but also harm others. Smokers breathe smoke out into the air. They breathe it out on their children and their wives or husbands. Children whose parents smoke have more breathing and lung problems than other children. Women who are married to smokers are more likely to have lung cancer than those married to non- smokers. We are all aware that smoking is bad. So why do people smoke? Question 28: The number one cancer among men is _________. A. tongue cancer B. throat cancer C. lung cancer D. mouth cancer Question 29: The main cause of mouth cancer, tongue cancer and throat cancer is _________. A. drinking B. overeating C. breathing D. smoking Question 30: Every year, smoking causes about one million _________. A. cancer patients B. killing diseases C. early deaths D. injured men Question 31: The word “it” in the passage refers to _________. A. cancer B. smoke C. air D. breath Question 32: Who are more likely to have lung cancer and lung problems? A. People who live in the city. B. Who live with smokes. C. People who live with non-smokers. D. People who live in the country. Choose one sentence that has the same meaning as the root one. Question 33: “Do you know Long’s address?” he asked me. A. He asked me for Long’s address. B. He asked me if someone knew Long’s address. C. He asked me if I know Long’s address. D. He asked me if I knew Long’s address. Question 34: They are building a new bridge over the river. A. A new bridge is building over the river. B. A new bridge is being built over the river. C. A new bridge is going to build over the river. D. A new bridge is built over the river. Question 35: I used to go to the cinema on Sundays. A. I usually went to the cinema on Sundays. B. I got used to going the cinema on Sundays. C. I didn’t go to the cinema on Sundays. D. I usually go to the cinema on Sundays. Question 36: You feel unhealthy because you don’t take any exercise. A. If you don’t take any exercise, you will feel healthy. B. If you took more exercise, you would feel healthier. C. If you take more exercise, you will feel healthier. D. If you were healthier, you would take more exercise. Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that best combines each pair of sentences in the following questions. Question 37: “Alice in the Wonderland” was written for children. It appeals to many adult readers. A. Though for children written, “Alice in the Wonderland” appeals to many adult readers. B. Though written for children, “Alice in the Wonderland” appeals to many adult readers. C. Though it written for children, “Alice in the Wonderland” appeals to many adult readers. D. Though writing for children, “Alice in the Wonderland” appeals to many adult readers. Question 38: The agreement ended six-month negotiation. It was signed yesterday. A.The agreement ended six-month negotiation which was signed yesterday. B .The agreement which was signed yesterday lasted six months. C. The negotiation which lasted six months was signed yesterday. D. The agreement which was signed yesterday ended six-month negotiation. Question 39: Think it through very carefully. Or else, you will not come up with the right answer. A. If you think it through very carefully, you will not come up with the right answer. B. Although you think it through very carefully, you will not come up with the right answer. C. However carefully you think it through, you will not come up with the right answer. D. Unless you think it through very carefully, you will not come up with the right answer. Question 40: He felt very tired. However, he was determined to continue his work. A. As the result of his tiredness, he was determined to continue his work. B. He felt so tired that he was determined to continue his work. C. Feeling tired, he was determined to continue his work. D. Tired as he might feel, he was determined to continue his work. giúp mình với ạ

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team