Trên cùng 1 nửa mp có bờ chứa tia Ox,vẽ 2 tia Oy,Oz sao cho xOy=40 độ,xOz=110 độ. a,Tính yOz b,Vẽ Ot là tia đối của tia Ox.Tính tOz

Các câu hỏi liên quan

Rewrite the sentences so that it means the same as the first one beginning with the given words. 1. I last saw Miss Lan five years ago. I haven’t ............................................................................................................................... 2. Nobody has used this computer for a long time. This computer ....................................................................................................................... 3. Let’s use banana leaves instead of plastic bags to wrap food . How about ............................................................................................................................ 4. It’s a pity I can’t go to the countryside on the weekend. I wish ................................................................................................................................... 5. “Why do you like learning English” said Miss Lan to me. Miss Lan asked .................................................................................................................... 6. Nobody has watered the trees since last Friday. The trees ………..……………………………………………..………………………………………… 7. “ I will go to Thailand tomorrow”. said Lan Lan said ………………………………………………………………………………….. 8. I dont’ have a new computer. I wish ............................................................................................................................... 9. The house has been rebuilt. It was destroyed in the typhoon . The house........................................................................................................................... 5. I had my brother repair my computer yesterday I had ......................................................................................................................................................... 36. “How often do you go to the English club?”, Ba asked Mai. Ba asked ………………………………………………... 37. She last wore that dress at her sister’s wedding. She hasn’t …………………………………………… 38. Jack London didn’t write the novel “The adventures of Tom Sawyer “. The novel……………………………………………………………. 39. Computers are used to design new models. People ………………………………………………….... 40. “ When will you return the books to the library?” she asked me. She asked …………………………………………..