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lolse3
2 năm trước
cho tam giác abc cân tại a có bc=40cm gọi m,n lần lượt là trung điểm của ab, ac cm tứ giác bmnc là hình thang và tính mn
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‘Laughter is the best medicine’ is a common saying in our life. It means one smile is equal to ten prescriptions of tonic. A laugh eases stress and physical tension. Most of our stress, anger and pain get relieved when we laugh. A laugh will heal our mind, body and soul. It is found that people who laugh more are healthier. Laughter boosts energy and helps we stay focused more with a energy and enthusiasm. It improves the function of blood so it will help protect against heart attack and many other diseases. Besides, we should have more optimistic mindset, live positively to overcome all difficulties easily. So much of tensions, work stress or anything that make we feel tired will be washed away only with a laugh. Don't be sad anymore when we have a problem, we must try to be happy is a good way to stop worrying. Thus we should always maintain positive attitude in life and keep laughing. Laughter has a lot of benefits so we should stay happy. Mọi người sửa ngữ pháp giùm em với ạ

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