[tex]\bf \sqrt{10}\approx 3.162278
\\\\\\
\boxed{3}\text{\textemdash\textemdash\textemdash}3.162278\text{\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash\textemdash}\boxed{4}[/tex]