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Các bạn ơi giúp mk vs Mk đang gặp khó khăn Bài Cho một thửa ruộng hinh chư nhật ,nếu tăng thêm 2m và tăng chiều rộng thêm 3m thì diện tich tăng thêm 100mvuông .Nếu cùng giảm cả chiều dài và chiều rộng đi 2m thì diện tich giảm đi 68mvuông . Tinh diện tich quang đường đó
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Các câu hỏi liên quan

I. Pick out the word that has the stress different from that of the other words ( Trọng âm) 13 A. design B. remind C. wander D. invite 14 A. advise B. collect C. practise D. prepare 15 A. difficult B. intelligent C. interesting D. hospital 16 A. ancient B. abrupt C. replace D. suggest 17 A. exercise B. energy C. earthquake D. experience 18 A. interactive B. inspiration C. compulsory D. intermediate II. Choosethe word whose underlined and bold part is pronounced different ly from that of the other words ( Phát âm) 13 A. bulb B. nuclear C. dump D. plumber 14 A. bed B. level C. lesson D. bigger 15 A. lived B. visited C. wanted D. needed 16 A. washed B. advised C. promised D. talked 17 A. determine B. English C. prevent D. target 18 A. found B. mount C. ground D. country III. Choose the best answer among A,B,C or D that best completes each sentence ( Sử dụng động từ) 13. He _______ his parents for 2 months. A. hasn’t meet. B. haven’t met. C. hasn’t met D. didn’t met. 14. She _______ her friends for long time. A. hasn’t meet B. haven’t met. C. hasn’t met.. D. didn’t met. 15. We _______ here since we left school. A. haven’t work. B. have worked. C. has worked. D. to work. 16. That room has been in use since it __________ A. was redecorated B. has been redecorated C. has redecorated D. redecorated 17. We bought this picture a long tims ago. We ……………… it for ages. A. had B. have had C. have D. B & C are correct 18. When I arrived at the train station yesterday, I……… by my uncle A. was meeting B. was met C. met D. had met IV. Choose the best answer among A,B,C or D that best completes each sentence ( Chọn giới từ) 13. The boys are fond_________ playing soccer. A. about B. of C. with D. to 14. The girls are interested_________ cooking. A. to B. about C. with D. in 15. I can’t go with you because I have to look____my younger sisster. A. about B. after C. for D. at 16. Mrs Nga forgot to turn. ……… the faucet when she left for work. A. on B. off C. up D. down 17. Careless driving also accounts ……….the increasing number of traffic. A. with B. on C. for D. into 18. Never put----------- till tomorrow what you can do today. A. away B. on C. out D. off V. Choose the best answer among A,B,C or D that best completes each sentence ( Dạng từ) 13. My sister had an __________trip last summer. A. enjoy B. enjoyment. C. enjoyable D. enjoying 14. My father drives very _____________. A. care B. carefully. C. careful D. careless 15. We felt_______when the New Year’s Eve was coming near. A. exciting B. excitement C. excitedly D. excited 16. That car looks quite ………… A. comfort B. to comfort C. comfortable D. comfortably 17. He was ....... fined for dropping litter in publish places. A. heaviness B. heavy C. heavily D. heavier 18. People are becoming far more aware of …………………..changes. A. environmental B. environment C. environmentaly D. environmentalist VI. Choose the best answer among A,B,C or D that best completes each sentence ( Mệnh đề quan hệ) 13. The place ............ we spent our holiday was really beautiful. A. what B. who C. where D. which 14. What was the name of the girl________passport was stolen? A. whose B. who C. which D. when 15. The bed ...................... I slept in was too soft. A. who B. whose C. what D. which 16. What is the name of the woman ………gave us a lift? A. she B. whom C. who D. which 17. My mother is a person ……………….tremendously A. whom I admire B. whom I admire her C. I admire D. who I admire her 18. Jane’s sister, ……………..we saw at the meeting, is an English teacher A. which B. that C. whom D. A and B are correct

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