Cho hình hộp chữ nhật
có
,
,
. Tính thể tích khối hộp
.
![img1](https://cungthi.online/upload/questionbank3/eduquestion/201728077190249556/obj201728077190249556568493_images/obj201728077190249556568493_img1.png)
![img2](https://cungthi.online/upload/questionbank3/eduquestion/201728077190249556/obj201728077190249556568493_images/obj201728077190249556568493_img2.png)
![img3](https://cungthi.online/upload/questionbank3/eduquestion/201728077190249556/obj201728077190249556568493_images/obj201728077190249556568493_img3.png)
![img4](https://cungthi.online/upload/questionbank3/eduquestion/201728077190249556/obj201728077190249556568493_images/obj201728077190249556568493_img4.png)
![img5](https://cungthi.online/upload/questionbank3/eduquestion/201728077190249556/obj201728077190249556568493_images/obj201728077190249556568493_img5.png)
A.
B.
C.
D.
Đáp án và lời giải
Đáp án:B
Lời giải:
Ta có .
Nên
Vậy đáp án đúng là: B.