Cho hình chóp đáy là hình vuông cạnh . Hình chiếu của lên  là trung điểm của. Thể tích khối chóp  là:

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  You do not have to be afraid of bear, ______________ educating yourself about the dangers can help keep you safe.
   

• Choose the best answer for the following sentence:

  You ____________ leave the table once you have finished your meal and politely excused yourself.
   

• Choose a word that has different stress pattern:

  entertainment                        information                        difficulty                      understanding

• Choose a word that has different stress pattern:

  swallow                    subject                     digest                    enough

• Choose a word that has different stress pattern:

  imagine                    important                     example                  wonderful

• Choose a word that has different stress pattern:

  different                      carefully                     holiday                  reviewer

• Choose a word that has different stress pattern:

  knowledge                     forever                   journey                   action

• Choose the best answer for the following sentence:

  Francis Bacon lived __________ about the same time as Shakespeare.
    

• Choose the best answer for the following sentence:

  People enjoy a book __________ different ways.
   

• Choose the best answer for the following sentence:

  This book is not really ____________. It is a waste of money buying it.