Level:
Project ID:
9000121004
Accepted:
1
Clonable:
0
Easy:
0
In the cube \(ABCDEFGH\) find the
angle between the lines \(S_{AE}S_{HC}\)
and \(S_{HC}S_{BF}\),
where \(S_{AE}\),
\(S_{HC}\) and
\(S_{BF}\) are the centers
of the segments \(AE\),
\(HC\) and
\(BF\),
respectively.
\(53.13^{\circ }\)
\(26.57^{\circ }\)
\(60^{\circ }\)
\(36.87^{\circ }\)