Question

Find the length of the longest rod that can be placed in a room 12m long, 9m

broad and 8m high.​

Answer 1

√( l²+b²+h²)

=√(12² + 9² + 8² )

=√( 144+81+64)

=√(289)

=17

Hence, longest rod that can be placed in a room of dimensions 12m x 9m x 8m is 17 m

Answer 2

Answer:Answer.

Given length l = 12 m

breadth b = 9 m and height h = 8 m

Longest rod that can be placed in a room is nothing but its diagonal.

Length of diagonal of a cuboid = √(l2 + b2 + h2)

Length of longest rod = √(122 + 92 + 82) m

= √(144 + 81 + 64) m

= √289 m

= 17 m

Thus the length of the longest rod is 17 m

Please mark as brainlist answer !,!!!!!

Please mark as brainlist answer !!!!!!,,,