Level:
Project ID:
1103061401
Accepted:
1
Clonable:
0
Easy:
0
The rectangular box \( ABCDEFGH \) has sides of lengths \( |AB|=6\,\mathrm{cm} \), \( |BC|=4\,\mathrm{cm} \), \( |AE|=8\,\mathrm{cm} \). Find the angle between the plane \( EFB \) and the plane \( HGB \) (see the picture). Round the result to two decimal places.
\( 26.57^{\circ} \)
\( 45^{\circ} \)
\( 22.5^{\circ} \)
\( 31.43^{\circ} \)