Cho đường tròn tâm O có dây AB vẽ C và D thuộc AB sao cho AC = AB và BA = BD ,OC và OD cắt đường tròn tâm O tại E và F, EF giao OA, OB tại H và k Chứng minh rằng EH = HK=KF

Các câu hỏi liên quan

1. Find the word which has a different stress pattern from that of the others. A. musician B. poetic C. fashion D. minority 2. Find the word which has a different stress pattern from that of the others. A. music B. poem C. symbol D. unique 3. Find the word which has the underlined part pronounced differently from that of the others. A. clothes B. correspondences C. conveniences D. suitcases 4. Find the word which has the underlined part pronounced differently from that of the others. A. design B. stripe C. addition D. describe 5. Workers like wearing jeans because they don't _______ easily. A. make off B. wear off C. wear out D. make out. 6. The _______ of jeans stopped growing in the 1990s. A. sell B. sold C. selling D. sale 7. Nowadays, many Vietnamese women prefer to wear modern _______ at work. A. cloth B. cloths C. clothing D. clothes 8. Her jacket is made _______ very soft leather. A. by B. of C. with D. in 9. Could you help me, please? - ________. A. No problem B. No, thank you C. I need a favor D. That’s great 10. Wearing uniforms encourages students to be proud _______ their school. A. with B. at C. for D. of 11. “What _______ is this shirt made of? A. material B. thing C. object D. container 12. My friend is one of the famous fashion _______ nowadays. A. actors B. designers C. singers D. writers 13. The word “jeans” comes from a kind of _______ that was made in Europe. A. substance B. form C. element D. material 14. In the 1980s, jeans finally became high fashion clothing. _______ of jeans went up and up. A. sales B. buying C. selling D. making