user-avatar
ngat.min1999x
2 năm trước
Bài 2: Cho tam giác ABC cân tại A, N là trung điểm của BC. Trên tia đối tia NA lấy điểm D sao cho NA = ND a/ Chứng minh ABN = DCN b/ Chứng minh ACD cân c/ Cho NB = 3 cm ; AN = 4 cm . Tính độ dài AB .
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

______ 1. Pollution can be reduced if we joined hands to prevent it. _________________________________________________________________ ______ 2. If farmers would make use of pesticide more wisely, the soil would not be poisoned. _________________________________________________________________ ______ 3. I won’t believe it unless you showed me the evidence. _________________________________________________________________ _____ 4. Unless you don’t tell me the truth, I won’t help you. _________________________________________________________________ _____ 5. If James is more outgoing, he would have more friends. _________________________________________________________________ _____ 6. I think the show would be successful if he were one of the organizers. _________________________________________________________________ ______ 7. If you paid more attention to what I said, you didn’t make so many mistakes. _________________________________________________________________ ______ 8. If children are taught about environmental issues, they might change their attitudes towards pollution. _________________________________________________________________ ______ 9. You would be punished if you park your car here. _________________________________________________________________ _____ 10. If you could win the competition, we will have a celebration. _________________________________________________________________

VIII. Make sentences using the words and phrases given 1. Computer studies/ Nam’s favorite subject. 2. Mrs Thao /our teacher/English. 3. Where/Mr Tan/live? 4. Shall/introduce you my best friend, An? 5. Trung/like/play soccer. IX. Complete each sentence so it means the same as the sentence above. 1. I don’t have a bookshelf in my room.  There------------------------------------------------------------------------------ 2. The note book is on the book.  The book ------------------------------------------------------------------------ 3. The car is in front of the bus.  The bus ---------------------------------------------------------------------------- 4. My favorite room in the house is the bedroom.  I like-------------------------------------------------------------------------------- 5. Quang is lazier than Ha.  Ha----------------------------------------------------------------------------------- 6. A city is noisier than a village.  A village---------------------------------------------------------------------------- 7. Please tell me something about your neighborhood.  Can---------------------------------------------------------------------------------- giúp mk nha các bạn

Đặt câu hỏi Yes- No và trả lời 1. Her house / old / Yes. => Is her house old? Yes, it is. 2. our school / small / No =>…………………………………………………….. 3. our city / big / Yes =>…………………………………………………….. 4. The windows / old / No. =>…………………………………………………….. 5. The clocks / small / Yes. =>…………………………………………………….. 6. You / grade 7 / No =>…………………………………………………….. 7. Thu’s school / in the city / Yes =>…………………………………………………….. 8. Phong’s school/in the country/No =>…………………………………………………….. 9. Hoa’s classroom / small / Yes =>…………………………………………………….. 10. Lan’s books / old / No =>……………………………………………………..

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