9.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{129adfbb-98fa-4e88-b636-7b4d111f3349-20_406_515_246_776}
\captionsetup{labelformat=empty}
\caption{Figure 3}
\end{figure}
Figure 3 shows a sketch of a parallelogram \(P Q R S\).
Given that
- \(\overrightarrow { P Q } = 2 \mathbf { i } + 3 \mathbf { j } - 4 \mathbf { k }\)
- \(\overrightarrow { Q R } = 5 \mathbf { i } - 2 \mathbf { k }\)
- show that parallelogram \(P Q R S\) is a rhombus.
- Find the exact area of the rhombus \(P Q R S\).