Em học lớp 6 em ko câu trả lời sorry chị

dạ anh nhờ bn anh hay ai tl thay nha

guaur

B

bgxvcgđ

I don't no 

sorry 

Can you viết again

Nowadays, people have many choices of commuting to work including public transport. However, it’s not always the best solution at all. Let’s consider its pros and cons.

It’s the fact that public transport has many benefits. Firstly, using bus, train,… save you an amount of money. Imagine you drive a private car or motorbike, you must pay for not only the cost of petrol but also the regular maintenance fee. Furthermore, the price of buying one car or motorbike is expensive itself. Bus, tram,… is for everyone, even the lowest-income people. Another advantage I want to mention is that using public vehicle is a method to reduce air pollution and traffic jams. Especially in the city, where the number of vehicles increasing makes the road crowded, the public transport system is developed to deal with traffic jam and reduce the pollutant released by petrol-run vehicles.

On the other hand, there are some disadvantages with public transportation. The problem that confuse people most is that it wastes time. Usually, people need to wait for some minutes to catch a bus a train, so they need to be punctually in order not to miss is. In some crowded cities, buses meet difficulties moving among so many vehicle, so people have to wait for quite a long time before the buses come, which annoy them and cause them to be late for schools or work. Besides, as I mentioned above, the fares are cheap so many people want to use it, sometimes it is crowded that it is impossible to breath and convenient for the pickpocket criminals to commit crime.

In conclusion, there are both positive and negative aspects of the using public transportation. Personally, I still believe that public transport is advantageous when the government build a modern public transport system to avoid the drawbacks.

cái gì đấy

lười ghi quá bạn ơi

 Quãng đường mà hình tròn A lăn được bằng quãng đường di chuyển của tâm hình tròn A. 
Tâm I của hình tròn A cách tâm hình tròn B một khoảng bằng 4 lần bán kính của hình tròn A (tương ứng, chu vi của đường tròn mà I vạch nên cũng gấp 4 lần chu vi hình A).
Vì vậy, hình A phải thực hiện 4 vòng quay mới trở lại điểm xuất phát. 
Thế nên chả có đáp án nào đúng cả

giup em voi

Hình Thang cân

Ta có: tam giác ABC là tam giác cân tại A.

=> góc B= góc C

Vì BD và CE là phân giác góc B và C

=> góc DBC = góc EBD = góc DCE = góc ECB

Xét tam giác EBC và tam giác DBC có:

góc ECB = góc DBC

góc BCD = góc EBC

Chung cạnh BC