Gershgorin's circle theorem states that every eigenvalue $\lambda$ of matrix $A$ lies in at least one Gershgorin disc centered at diagonal entry $a_{ii}$ with radius $r_i = \sum_{j \neq i} |a_{ij}|$. For the matrix $A = \begin{pmatrix} 2 & 0.2 \\ 0.3 & 5 \end{pmatrix}$, the discs are centered at 2 and 5 with radii 0.2 and 0.3 respectively. Which statement is necessarily true?