Question

8. A room without ceiling is 12 m long, 4 m wide and 3 m
high. Find the length of the longest rod that can be placed
in that room.​

Answer 1

Answer:

13m

Step-by-step explanation:

length(l) =12m

breadth(b) = 4m

height(h) = 3m

length of the longest rod = $\sqrt{l^{2}+b^{2} +h^{2}$

= $\sqrt{12^{2} +4^{2} +3^{2}$

=$\sqrt{144+16+9$

=$\sqrt{169$ = 13m

therefore the length of the longest rod is 13m

Answer 2

Answer:

13m

Step-by-step explanation:

length=12m

breadth=4m

height=3m

longest rod that can be placed=√l sq.+√b sq.+√h sq.

=√12ka sq.+√4 ka sq.+√3 ka sq.

=√169

=13m

so the longest rod that can be placed in the room is 13 m long..

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