Question

Find the length of the longest rod that can be placed in a room whose dimensions are
12 m x 9 m x 8 m.​

Answer 1

Answer:

Diagonal = √12²+9²+8² m

= 17 m

longest rod = diagonal =17 m

Answer 2

Answer:

length of the longest thin rod=diagonal of room

the diagonal of room =√l²+b²+h²

=√(12)²+(9)²+(8)²

=√144+81+64

=√289

=17

therefore the length of the longest rod=17m.