Question

The dimension of a room are 12 metre into 4 metre into 3 metre how long in iron rod can be placed in the room



Ch

Answer 1

Answer:

length l=12m

breadth b=9m

and

height h=8m

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

Length of diagonal of a cuboid=

√(1^2+b^2+h^2)

length of longest rod =√(12^2+9^2+8^2)m=

√(144+81+64)m=√289m=17

The length of the longest rod is 17m.

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