Ответ:
\[\sqrt{0,57} \Longrightarrow \sqrt{0} < \sqrt{0,57} < \sqrt{1} \Longrightarrow\]
\[\Longrightarrow 0 < \sqrt{0,57} < 1.\]
\[\sqrt{0,57} \Longrightarrow \sqrt{0} < \sqrt{0,57} < \sqrt{1} \Longrightarrow\]
\[\Longrightarrow 0 < \sqrt{0,57} < 1.\]