Đáp án:
Giải thích các bước giải:
ta có: AB//CD
AB+AC=BC
=>2+6=BC
=>BC=8(cm)
Lại có:
BC+BD=CD
=>8+8=CD
=>CD=16(cm)
Vậy CD=18cm
TÌm x,y,z.Nhớ giúp mình nha mình vote 5 sao và trả lời hay nhất
Giúp mk vs ạ mk đg cần gấp ....
các bạn giúp mình với mình đang đi thi cảm ơn nhiều
Em mới đẻ đứa thứ nhất :>> Vẽ mầm đôi -.-
Tìm ảnh của (E) $\frac{x^{2}}{16}$ + $\frac{y^{2}}{9}$ = 1 qua $Q^{90 độ}$ Giúp mình với
Giúp mình từ phần 2 nha :3 mik cảm ơn
II.VOCABULARY AND GRAMMAR Exercise 1 : Choose the best answer
27. After losing all his money, he left the gambling table___________. (disappoint) 28. A quarter of that area has been_____________ in the past decade. (forest) 29. There is a ____ of 10% in the amount of money available for buying new books. (reduce) 30. Look! He is a really __________ boy with his daily activities. (energy) 31. I would like you to clean the ______________ on the beach. (pollute) 32. At present, all countries in the world are worrying about the __________ problem. (environment) 33. She turned on the lights all day. Therefore, she paid a lot of money. As she____________ 34. I think we should make posters on energy saving and hang them around our school. I suggest posters 35. The weather will be fine today. Our family will have a picnic outside. If _________ 36. John spends most of his free time participating in social activities. John spent _________
Giải giúp mik nhé, mik cần gấp lắm
Sắp xếp câu. 5. live/ ancient/cottage/ the/ sea/ by/ they/ fisherman's/ in/ an. 6. was/ her/ striped/ bag/ shopping/ carrying/ she/ canvas/ a/ heavy/ arm/ full/ vegetables/ of/ on 8. wearing/ smart/ business/ a/ a/ jazzy/ suit/ grey/ waistcoat/ he/ was/ with.
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