\[\boxed{\mathbf{571\ (571)}.\ Еуроки\ - \ ДЗ\ без\ мороки}\]
\[P_{кв} = 96\ см.\]
\[P_{кв} = 4a = 96 \Longrightarrow a = 96\ :4 =\]
\[= 24\ см.\]
\[S_{кв} = a^{2} = 24^{2} = 576\ см^{2}.\]
\[Ответ:\ \ 576\ см^{2}.\ \]