[tex]\bf \sqrt{24}\qquad \approx \qquad 4.899~\hfill \underset{\textit{nope, is outside}}{~\hfill \stackrel{\sqrt{24}}{4.899}}\rule[0.35em]{2em}{0.25pt}\boxed{5}\rule[0.35em]{10em}{0.25pt}\boxed{6}[/tex]