Trong không gian $Oxyz$ , mặt phẳng $\left(P\right):3x+y-4z-12=0$ cắt trục $Ox$ tại $A$ , cắt trục $Oz$ tại $B$ . Chu vi tam giác $OAB$ bằng

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Một số câu hỏi khác có thể bạn quan tâm.

• Choose a word that has different stress pattern:

   popularity              international                   collaboration               understanding

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

  It was we that want to see the hotel manager.

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

  It was we that the guide showed round the ancient town.

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

   beauty                apply                 physical              entirely

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

  Neither of the three men knows her name.

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

   controversial                 contestant            swimsuit               acts

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

  I prefer listening to music than playing chess.

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

   pageant                peak                 each             dream

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

  The ladder which I was standing began to slip.

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

  The bill the shop manager sent to him was worth thousands of dollar.