Trong không gian cho hình chữ nhật có . Tính theo a độ dài đường sinh của hình trụ, nhận được khi quay hình chữ nhật xung quanh trục .  

Chia sẻ

Một số câu hỏi khác có thể bạn quan tâm.

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:    

• Choose A, B, C or D to indicate the word where underlined part is pronounced differently in each of the following questions:

• Choose A, B, C or D to indicate the word where underlined part is pronounced differently in each of the following questions:

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:  

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:

• Choose the word whose the underlined part differs from other three in pronunciation in each of the following questions:

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:   

• Mark the letter A, B, C or D to indicate the word whose underlined part differs from the other three in pronunciation in each of the following questions:  

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions:

• Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part is pronounced differently from that of the rest in each of the following questions: