Question

The length and breath and height of a room are 8m25cm ,6m75cm and 4m50cm,respectively. Determine the longest rod which can measure the three dimension of the room exactly

Answer 1

If l, b and h are length, breadth and height in same units ( either in meter or centimeter)
The longest length should be
$\sqrt{{l}^{2} + {b}^{2} + {h}^{2} }$