Question

The length, breadth and height of a room are $8m25cm,6m75cm,$ and $4m50cm$ respectively. Find the length of the longest rod that can be fitted in the room exactly.

Answer 1

$longestrod=\sqrt{(8.25{)}^2+(6.75{)}^2+(4.5{)}^2}=\sqrt{68.0625+45.5625+20.25}=\sqrt{133.875}=11.57\left(approx\right)$