Cho khối nón có bán kính đáy là 6, thể tích là . Tính diện tích xung quanh của khối nón đó.        

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Một số câu hỏi khác có thể bạn quan tâm.

• Find a mistake in the four underlined parts of the sentence and correct it:

  True friendship is like sound health; it’s value is seldom known until it is lost.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Anybody can sympathize with the sufferings of a friend, but it requires a very fine nature to

  sympathize with a friend’s successful.

• Find a mistake in the four underlined parts of the sentence and correct it:

  A real friend is not one who only entertains you, but one who cares about you, either one

  who will be there when you cry.

• Find a mistake in the four underlined parts of the sentence and correct it:

  There is not distance too far between friends, for friendship gives wings to the heart.

• Find a mistake in the four underlined parts of the sentence and correct it:

  True friendship is when two people have mutual respect for one another, and really care

  about the each other’s feelings and dreams.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Friends share with each other important things that they do not share with other.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Experience is the knowledge that you get from life and from to be in a lot of different situations.
  
  

• Find a mistake in the four underlined parts of the sentence and correct it:

  I can say with personal experience that I would rather do any job than be jobless.

• Find a mistake in the four underlined parts of the sentence and correct it:

  Many passengers are unbelievably nervously, usually because of a bad experience

  in the past.
  
  

• Find a mistake in the four underlined parts of the sentence and correct it:

  In my experience, very intelligent people must still make terrible mistakes.