§ Задание 57
\[\boxed{\mathbf{1.}\mathbf{57}}\]

\[AK = 4\ см\]
\[KL = 3\ см\]
\[LA = 7\ см\]
\[AK < LA\]
\[KL < LA\]
\[KL < AK\]
\[Вывод:\]
\[AK + KL = AL.\]
\[\boxed{\mathbf{1.}\mathbf{57}}\]

\[AK = 4\ см\]
\[KL = 3\ см\]
\[LA = 7\ см\]
\[AK < LA\]
\[KL < LA\]
\[KL < AK\]
\[Вывод:\]
\[AK + KL = AL.\]