Level:
Project ID:
1103061407
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 lines \( CG \) and \( EC \) (see the picture). Round the result to two decimal places.
\( 42.03^{\circ} \)
\( 47.97^{\circ} \)
\( 45^{\circ} \)
\( 50.04^{\circ} \)