1
4 2
16
16
8 3
15
50
6
5 2
6
3
5
4
1
1
2
+
+
=
=
=
+
+
+
+
Hence, the required angle is cos–1 8
3
15







 11 5  Shortest Distance between Two Lines
If two lines in space intersect at a point, then the shortest distance between them is
zero