Năm đoạn thẳng có độ dại  ,  , , , . Lấy ngẫu nhiên ba đoạn thẳng trong năm đoạn thẳng trên. Xác suất để ba đoạn thẳng lấy ra có thể tạo thành  tam giác là .        

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

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

  about               count               shout                wounded

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

  title                icon                little                 hide

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

  bear               beard               pear             tear (v)

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

  genuine             geneticist              guarantee                generate

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

  decided                  hatred               warned            sacred

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

  wear               fair                 clear                 square

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

  cook            look              could             pound

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

  pleased                punched               packed             pushed

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

  tooth              breath              myth               with

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

  rise                measure              please               pause