Level:
Project ID:
1103025402
Accepted:
1
Clonable:
0
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 plane \( ABD' \) and the base plane \( ABC \). Round the result to two decimal places.
\( 57^{\circ} \)
\( 53.13^{\circ} \)
\( 33^{\circ} \)
\( 72.01^{\circ} \)