Tính thể tích V của khối lập phương ABCD.A’B’C’D’. Biết rằng diện tích tứ giác ACA’C’ bằng .

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose one sentence that has the same meaning to the root one:

  We started to write to each other two years ago.
  
  

• Choose the word that has the underlined part pronounced differently from the rest: 

  heavy                   head                     stream                   ready

• Choose the word that has the underlined part pronounced differently from the rest: 

  circle                        fire                       hire                        tire

• Choose a word that has different stress pattern:

  interest                    middle                   wonderful                   announce

• Choose a word that has different stress pattern:

  occupation                    national                       natural                      passenger

• Choose a word that has different stress pattern:

  office                 result                       pedal                  modern

• Choose a word that has different stress pattern:

  contain                       event                        holiday                      instead

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

  Would you mind give me a hand with this bag?

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

  I always go to school by the bicycle.

• Choose one sentence that has the same meaning to the root one:

  Please don't use the shower after midnight.