What will be the length of the longest diagonal of the cuboid of length 13 cm, width 11 cm, height 20 cm?
Answer & explanation
Correct answer: option 2
The length of the longest diagonal of a cuboid = $\sqrt{l^2\;+\;b^2\;+\;h^2}$
= $\sqrt{13^2\;+\;11^2\;+\;20^2}$ = $\sqrt{690}$
= 26.27 cm