Bài 6: Có tam giác nào là tam giác vuông trong các tam giác có độ dài các cạnh như sau không: a) 15cm; 8cm; 18cm. b) 21dm; 20dm; 29dm. c) 5m; 6m; 8m.

Bài 3: Cho tam giác ABC nhọn, kẻ AH vuông góc với BC. Tính chu vi tam giác ABC biết AB = 5cm, AH = 4cm, HC = 12cm.

Tìm số nguyên tố p sao cho 9p+4 là số chính phương mình đang cần gấp ạ

Mọi người giải giúp mình với ạ!! Trả lời cho 5⭐luôn. Cảm ơn nhiều ❤ Đề: Cho đường tròn (O;R). Qua điểm A thuộc đường tròn, kẻ tiếp tuyến Ax, trên đó lấy điểm B sao cho LaTeX: OB=\sqrt{2}RO B = 2 R. OB cắt đường tròn (O) ở C. Tính số đo của cung nhỏ AC??? Tải lên

1. Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: She is very good at knitting. She __________ herself this sweater. It looks very nice. A: knits B: knitted C: is knitting D: knit 2. Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. The children are eager to visit Hue next week. A: The children are looking up to visiting Hue next week. B: The children are looking forward to visit Hue next week. C: The children are looking up to visit Hue next week. D: The children are looking forward to visiting Hue next week. 3. Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. These/ baskets/ make/ thin/ bamboo/ strips. A: These baskets were made in thin bamboo strips. B: These baskets are made with thin bamboo strips. C: These baskets are made of thin bamboo strips. D: These baskets were made by thin bamboo strips. 4. Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. A: I’d like to try this conical hat, please. B: _____________ A: It’s not very expensive. B: It takes time to make it. C: This can be a souvenir. D: Sure. Put it on. 5. Mark the letter A, B, C or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions. A: decision B: helpline C: advice D: delighted 6. Mark the letter A, B, C or D on your answer sheet to indicate the most suitable response to complete each of the following exchanges. A: What a beautiful painting! – B: ______________ A: I bought it in a souvenir shop. B: You’re welcome. C: I’m glad to tell you so. D: I don’t mind if you say that. 7. Mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the following questions: Since changing the way of production, many craftsmen have voluntarily joined together to for ___________ . A: cooperatives B: cooperative C: cooperates D: cooperation 8. Mark letter A, B, C or D on your answer sheet to indicate the sentence that is closest in meaning to the original sentence in each of the following questions. When she was a student, she did not have a good relationship with her classmates. A: When she was a student, she got on well her classmates. B: When she was a student, she got on with her classmates. C: When she was a student, she didn’t get on well her classmates. D: When she was a student, she didn’t get on well with her classmates. 9. Mark the letter A, B, C or D on your answer sheet to indicate the meaningful sentence from the cues given. Last weekend/ I/ go/ Van Phuc village/ buy/ nice/ silk scarf/ mother. A: Last week I went to Van Phuc village to buy nice silk scarf for my mother. B: Last week I went to Van Phuc village to buy nice silk scarf to my mother. C: Last week I went to Van Phuc village and buy a nice silk scarf to my mother. D: Last week I went to Van Phuc village and bought a nice silk scarf for my mother. 10. Mark the letter A, B, C or D on your answer sheet to indicate the word that differs from the other three in the position of primary stress in each of the following questions . A: cognitive B: frustrated C: fabulous D: confident

Có nhận định cho rằng:" Một trong những nét nổi bật nhất của văn học trung đại việt nam là thể hiện tinh thần yêu nước sâu sắc" Em hãy làm sáng tỏ ý kiến đó qua hai bài thơ "Sông núi nước Nam " và "Phò giá về kinh"

Chọn từ điền vào chỗ trống alcohol . ambulance - anxiety - awake bandage - bite Bleeding - burns - conscious : crutches • Cased 1 . Your nose is___________________. 2 . Ibecame_________________ of someone watching me. 3 . He has a _____________Lon his head . 4 . According to some articles , eating chocolate can reduce ____________________ 5 . She was taken to the hospital with serious ________________ 6 . He never drinks ________________ 7 . I was on ____________for three months after the operation . 8 . The noise was keeping everyone _______________. 9 . You should call an____________Limmediately . 10 . Can I have a _____________of your apple ?

giải thích nữa nha ..............

ai là người chế ra điện .ông sinh mất năm nhiêu.

Tìm 2 số nguyên sao cho tổng của chúng và tích của chúng là 2 số đối nhau