Cho hình chóp
đáy
hình vuông cạnh
. Cạnh bên
vuông góc với mặt đáy và
. Gọi
là trung điểm của
. Hãy xác định
của góc giữa đường thẳng
và mặt phẳng
.
![img1](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img1.png)
![img2](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img2.png)
![img3](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img3.png)
![img4](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img4.png)
![img5](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img5.png)
![img6](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img6.png)
![img7](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img7.png)
![img8](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img8.png)
![img9](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img9.png)
![img10](https://cungthi.online/upload/questionbank3/eduquestion/2019161677261771421/obj2019161677261771421597924_images/obj2019161677261771421597924_img10.png)
A.
B.
C.
D.
Đáp án và lời giải
Đáp án:C
Lời giải:
Vậy đáp án đúng là C.