Cho hình lăng trụ đứng có đáy là tam giác vuông, . Biết rằng góc giữa hai mặt phẳng và bằng . Tính thể tích khối chóp .  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Choose the best answer for the following sentence:

  For the last ten years ________ in South Africa.
  
  

• Choose the best answer for the following sentence:

  I hope _________ by the end of the day.
  
  

   

• Choose the best answer for the following sentence:

  _________ while he has climbing it.
  
  

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

   The children have been doing their homework and by 10 o’clock they still hadn't finished.

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

   He always says that he will mend the window but he never did it.

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

   She will leave for work before the children get home from school.

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

   Just as I had got to an interesting part of the story, the doorbell rang.

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

  I’ve been here for two hours, and I’m still waiting.
  
  

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

  I’ve arranged to fly to Nha Trang this weekend.
  
  

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

  Mr. Pike intends to resign before the end of the month.