Question

Find the length of the longest pole that can be placed in a room 12 m long, 8 m broad and 9 m high.

Answer 1

The length of the longest pole can be calculated by calculating the value of the diagonal of a room which is considered to be in the shape of a cuboid.Hence,

The Diagonal of the cuboid$=\sqrt{l^2+b^2+h^2}$

$=\sqrt{{12}^2+8^2+9^2}=\sqrt{289}=17m.$