1. $\overset{\rightarrow}{GH}=\frac{5}{6}(2p+q)$            $\overset{\rightarrow}{JK}=\frac{5}{18}(2p+q)$

Write down two facts about the geometrical relationship between the vectors $\overset{\rightarrow}{GH}$ and $\overset{\rightarrow}{JK}$.