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Bài 2 cho tam giác ABC , trung tuyến AM a.chứng minh rằng SMAB=SMAC b. Biết AB=6cm,AC=8cm,BC=10cm.Gọi N là trung điểm của cạnh AC.Tính SMBN
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Exercise 7. Read the passage and answer the following sentences. On Wednesday evening, we went to the Town Hall. It was the last day of the year and a large crowd of people had gathered under the Town Hall clock. It would strike twelve in twenty minutes' time. Fifteen minutes passed and then, at five to twelve, the clock stopped. The big minute hand did not move. We waited and waited, but nothing happened. Suddenly, someone shouted “It's two minutes past twelve! The clock has stopped!” I looked at my watch. It was true. The big clock refused to welcome the New Year. At that moment, everybody began to laugh and sing. Notes: - strike (v): đánh, đập, điểm - minute hand (n): cây kim phút - suddenly (adv): đột nhiên - refuse (v): từ chối * Questions: 1. Where did they go on Wednesday evening? ->………………………………………………………………………………………………… 2. Was it the first day of the year? ->………………………………………………………………………………………………… 3. What time did the clock stop? ->………………………………………………………………………………………………… 4. Did the big minute hand move? ->………………………………………………………………………………………………… 5. What did everyone begin to do at that moment? ->…………………………………………………………………………………………………

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