Find the area of the parallelogram whose vertices are \(0\), \(a\), \(b\), and \(a + b\), where \(a\) and \(b\) are the vectors \({a} = \begin{pmatrix} \phantom -2 \\ -6 \\ \phantom -5 \end{pmatrix} \quad \text{and} \quad {b} = \begin{pmatrix} -1 \\ -2 \\ \phantom -0 \end{pmatrix}.\)
