user-avatar
ctvloga236
2 năm trước
Cho tam giác ABC nhọn nội tiếp đường tròn tâm O bán kính r Gọi H là giao điểm của các đường cao BD CE và AF câu a chứng minh góc ABC = góc ABC với AK = 2r câu b Chứng minh AD là phân giác của góc ABD
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

mình cần gấp II. Each sentence has a mistake find and correct it. 1. Hoa’s classroom is in the third floor. A B C D 2. Thanh isn’t has classes on Sunday. A B C D 3. Her sister is at school at 7 o’clock to 11 o’clock. A B C D 4. Do your brother play sports every afternoon? A B C D 5. He gets up and brush his teeth in the morning. A B C D 6. There is eight people in the livingroom. A B C D 7. Does Lan’s school big? A B C D 8. There are fourty students in Hoa’s class. A B C D 9. This is a pen and that is a eraser A B C D 10. She wash her face every morning. A B C D 11. Is this a eraser or a ruler? A B C D 12. How are you spell your name? A B C D 13. Sit down and open you book. A B C D 14. We live on a house on Xuan Thuy street. A B C D 15. I are a student and this is my school A B C D

hộ mình nhé 329. How many students are there ______ your class? A. in B. at C. to D. on 330. Where do you ______? - I live in Soc Son. A. sit B. spell C. be D. live 331. ______ is that? - It's a book. A. What B. Where C. How D. How old 332. How ______ you spell your name? A. do B. is C. are D. am 333. She's a _______. A. pen B. ruler C. desk D. nurse 334. How many televisions are there? There is _______. A. four B. two C. three D. one 335. ________ doors are there? - There are two. A. How B. How many C. Who D. What 336. _______ are they? - They're in the living-room. A. Who B. Where C. How D. What 337. My sister _______ a student. A. am B. are C. is D. do 338. There __________ a yard in our school A is B. are C. am D. be 339. There are two__________ in our sitting room. A bench B. benchs C. benches D. benchse 340. Are these your children and what are__________ names? A his B. her C. their D. our 341. What__________ his brother do? A do B. does C. is D. be 342. “__________is my book?”- “ It ‘s on the table.” A Where B. What C. How D. When 343. My mother is .............................home. A in B. at C on D. of 344. ………… sports do you play? => I play badminton. A. when B. where C. which D. How 345.. ………… does Ba watch TV ? => Ha often watches TV. A. How often B. How C. How long D. How old 346. How much meat do you need ? => I need a kilo ………… meat. A. on B. in C. with D. of 347. Nga ……………… a long black hair. A. have B. has C. with D. is 348. Now, Nam and Dung …………………… swimming. A. are B. is C. am D. be 349. There aren’t …………………… banana on the table. A. some B. a C. any D. an 350. What’s the weather like in the fall ? => It’s ……………… A. cool B. hot C. cold D. warm

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