Cho hình thoi ABCD có 1 góc nhọn bằng 30 độ. Khoảng cách từ giao điểm của hai đường chéo đến mỗi cạnh = h. Tính độ dài mỗi cạnh của hình thoi theo h.

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Writing 1. What is your hobby? What hobby……………………………………………………………………………………………………………………? 2. We all find painting interesting because it’s a creative activity. We all think …………………………………………………………………………………………………………………… 3. His hobby is collecting toy cars. He …………………………………………………………………………………………………………………………………… 4. It isn’t necessary to finish the work today. You ………………………………………………………………………………………………………………………………… 5. When did you start your hobby? How long ………………………………………………………………………………… 6. It took me three hours to make this pottery jug. I spent ……………………………………………………………………………………… 7. My father likes to do gardening at the weekend. My father………………………………………………………………………………………………………………………… 8. Why don’t we go swimming this afternoon? What about ……………………………………………………………………………?9. I’m leaving now because I don’t want to miss the train. (so) I …………………………………………………………………………………………… 10. The last time I saw my uncle was two years ago. (for) I ……………………………………………………………………………………………………………………………………… 11. Let me reach my office and then I will talk to him. (when) I …………………………………………………………………………………………… 12. Why don’t we donate our old books, toys and clothes to charity? (suggests) Mom suggests ………………………………………………………………………………… Giúp mk vs!