Question

the maximum length of a pencil that can be kept in a rectangular box of dimensions 8cm??6cm??2cm is

Answer 1

this is its diagonal
$= \sqrt{ {6}^{2} + {8}^{2} + {2}^{2} } \\ = \sqrt{36 + 64 + 4} \\ = \sqrt{104} \\ = 2 \sqrt{26}$

Answer 2

hope it helps dude...