Question

what is the maximum length of a pencil that can be kept in a rectangular box of dimensions 12 cm×9 cm×8cm.

Answer 1

Simple
Hope it helps It is not a hard question

Answer 2

l = 12 cm

b = 9 cm

h = 8 cm

maximum length of pencil = diagonal of rectangular box

                                           = √(l^2 + b^2 + h^2)

                                           = √(12^2 + 9^2 + 8^2)

                                           = √289

                                           = 17 cm