cho đường tròn tâm O bán kính R, từ điểm M bên ngoài đường tròn vẽ 2 các tuyến MAB và MCD, biết AB=CD. Chứng minh MA =MC

Các câu hỏi liên quan

24. Scientific progress supplies us with A. Conveniences B. Convenient C. inconvenience D. develops D. inconveniences D. natured 25. The panda's 26. The Games really became a festival that impressed sports.A. enthusiasts B. enthusiasmC. enthuse 27Did you remember anything Ad.at the party? A. interested B. interesting C. interests 28. In rainy seasons, roads in the village are alyways AlA. mud 29 .Linda likes wearing 30. All the teachers work on an entirely A basis. A. volunteer B. volunteeredC. voluntary D. voluntarily 31. Books are still a cheap way to get information and NA. entertainment B. entertainC. entertaining D. entertainer 32. Life here is very 33. Women usually don't shake hands when being 34. He was so 38. Farmers can enrich the soil by using 39. Nowadays, chemicals are 40. What's your 41. In this course, students receive habitat is the bamboo forest. A. nature B. naturalC. naturally D. enthusiastic D. to interest clothes. A. colour B. muddedC. mudding B. colourfullyC. colourful D. muddy D. colourless A. peacefull B. peaceful C. peace D. peacefulness D. introducer A. introducing B. introduction B. careless C.introduced that he had an accident.A. caring C. careful C. fertilize B. injectingC.inject C. nationality B. instructional C.instruction D. carefully .A. fertile B. fertility D. fertilizers into some fruits to reduce decay.A. injection B. national in the basic English grammar.A. instruct B. respectful of English learning.A. import B. important D. injected D. international ?-I'm Vietnamese.A. nation D. him for his honesty.A. respective C. respectable C. importantly D. respect D. importance D. instructive42. I 43. All of the students appreciate the x 44. We can enjoy live programmes through satellites.A. communicate B. communicationC. communicative communicable of English learningA. Import B. important C.importantly Dt x 45. All of my students appreciate the 46. She is_in asking for bigger salary. She worked hardA. reasonB. reasonable C. unreasonable 47. Are you 48. This book is interesting. It's also well-. 49. My brother is studying 50. Communist is the highest form of WORD FORM 1 1. D. importance D. unreasonably D. sensation D. illustrate D. electrified of the danger that you are facing? A. sense B. sensible A. illustrating B. illustrated engineeringA. Electronic B. electric B. socialist c.senseless C. illustration C. electrical C. society D. socialism A. social The ao dai is the dress of Vietnamese women. TRADITION