user-avatar
cui...mia
2 năm trước
Trên bản đồ ghi tỉ lệ 1/1000 có hình vẽ một khu đất hcn với CD 5 cm và chiều rộng 3 cm . Tính: A) chu vi khu đất ngoài thực tế theo đơn vị đo bằng mét . B) diện tích khu đất ngoài thực tế theo m2 , ha. C) nếu cấy lúa đạt năng suất 10,5 tấn/ha thì thửa ruộng đó thu hoạch được bao nhiêu tấn thóc ?
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Read the text below and fill in the blanks. The driving rules can be very different among countries and areas. Therefore, you need to learn the laws before travelling abroad, or you will get into trouble with the police. The most common difference is the legal driving age. Simply, it is the age when a person can get their driving license to drive a motor vehicle. Most countries have a driving age of at least eighteen. However, in some states of the USA, the number is sixteen. Meanwhile, in New Zealand, a person must be at least fifteen to drive. Surprisingly, women in some parts of the world are not allowed to drive no matter how old they are. Instead, they must travel by car with a male family member or hired male driver. This situation has changed, but only recently. Some countries even have very strange or unusual laws. For example, in Cyprus, it is against the law to eat or drink anything while driving. Câu hỏi: 1. Each country has its own................. 2. The...................in the USA is sixteen.  3. In order to drive a motor vehicle, a person has to get a.................. 4. Women must not ................  on their own in some parts of the world. 
 5. In one country, eating or drinking while

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team