Một hình trụ có diện tích xung quang bằng 4, diện tích đáy bằng diện tích một mặt cầu bán kính bằng 1. Tính thể tích khối trụ đó.             

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  ___________ other boys of the same age who are crazy about computer games, my brother spends his free time experimenting in the lab.
   

• Choose the best answer for the following sentence:

  Weekend in my family is the time when mother and daughter cook meals whereas father and son _________ broken things around the house.
   

• Choose the best answer for the following sentence:

  Whatever you do, I am by your side to give ____________.
   

• Choose the best answer for the following sentence:

  A ___________ studies living things and works with plants and animals.
  

• Choose the best answer for the following sentence:

  Whenever a problem __________, we try to discuss and find solution as soon as possible.
   

• Choose the best answer for the following sentence:

  Children are told to be __________ for the whole week and promised to be rewarded at weekends.
   

• Choose the best answer for the following sentence:

  I am proud to have a family who is ___________ of every member.
  
  

• Choose the best answer for the following sentence:

  Family is a good ___________ from which you can join the society with confidence.
   

• Choose the best answer for the following sentence:

  Dolphins __________ in BC waters for millions of years, and are still common today.
   

• Choose the best answer for the following sentence:

  This wine __________ in the cellar for 15 years. When we take it out and open it, it will taste beautiful!