$\displaystyle\Delta{A}{B}{C}\usepackage{cmbright}\Huge\$ is similar to $\displaystyle\Delta{D}{E}{F}\usepackage{cmbright}\Huge\$ .

Which side of $\displaystyle\Delta{D}{E}{F}\usepackage{cmbright}\Huge\$ corresponds to $\displaystyle{\overline{{{A}{C}}}}\usepackage{cmbright}\Huge\$ ?