[tex]\it \left.\begin{aligned} \it \dfrac{AB}{MN}=\dfrac{\ 6^{(3}}{9}=\dfrac{2}{3}\\ \\ \\ \it \dfrac{BC}{NP}=\dfrac{\ 8^{(4}}{12}=\dfrac{2}{3}\\ \\ \\ \it \dfrac{CA}{PM}=\dfrac{\ 4^{(2}}{6}=\dfrac{2}{3}\end{aligned}\right\} \stackrel{LLL}{\Longrightarrow} \Delta ABC\sim \Delta MNP \Rightarrow \widehat A\equiv \widehat M[/tex]
