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lethuytien4823
2 năm trước
Cho tam giác ABC, có cạnh BC bằng 32cm, biết rằng nếu kéo dài cạnh BC thêm 4cm thì diện tích tăng thêm 52 cm vuông. Tính diện tích tam giác ABC
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Ex1: Complete the sentences and but for or since into each gap: 1. It (rain)......................... .................luch time. 2. I (stay).......................... ...................a year. 3. She (live)..........................in London...............1985. 4. Please hurry up! We (wait).......................... ............an hour. 5. I (know)............................her.......................January. 6 Nam's father (work)..............................in this company............20 years. 7. I (not see)..........................Tom................Monday. 8. The house is very dirty. We (not clean)....................it..................ages. 9. She (be)...........................sick.....................Wednesday. 10. John (work).....................................in that firm.................six years. 11. He (be)...........................in the hospital.................almost a month. 12. They (not send).............................him any money.............last summer. Mn giúp mk vs mk đang cần gắp, cảm ơn trc ạ.

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