Cho hình chóp tứ giác đều có cạnh đáy bằng , các mặt bên tạo với đáy một góc . Tính diện tích của mặt cầu ngoại tiếp hình chóp.  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

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

  Some students in my school got scholarship and John was the sixth of them
  
  

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

  A waitress served me. She was impolite and impatient.
  
  

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

  consider               suitable              Asian              aside

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

  The man told me to oil the car. I bought the car from him.
  
  

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

  I hired a car. It broke down.
  
  

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

  I was standing on a ladder. It began to slip.

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

  stabbed               stepped               talked             missed

• Choose a word that has different stress pattern:

  actually            accomplish              equipment              gigantic

• Choose a word that has different stress pattern:

  category              interesting                understanding                regularly

• Choose a word that has different stress pattern:

  admire            bygone             common             landscape