Given l$1$:r$1($t$)=($i$6$j$+2$k$)+$t$($i$+2$j$+$k$),$l$2$:r$2($u$)=(4$j$+$k$)+$u$(2$i$+$j$+2$k$),$ find the point where l$1$ and l$2$ intersect and find the angle between l$1$ and l$2.$