Level:
Project ID:
2010015601
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
A regular hexagonal prism \( ABCDEFA'B'C'D'E'F' \) has the side \( a \) of the length \( 3\,\mathrm{cm} \) and the height \( v \) of the length \( 8\,\mathrm{cm} \). Find the angle between the lines \( AD' \) and \( CD' \). Round the result to two decimal places.
\( 31.31^{\circ} \)
\( 58.69^{\circ} \)
\( 16.70^{\circ} \)
\( 20.57^{\circ} \)