find the length ofthelongest rodthat can be placed in a box of the length 1.2m, breadth 90cm and height 80cm.
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Answer:
Given that:
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=
(l
2
+b
2
+h
2
)
Length of longest rod =
(12
2
+9
2
+8
2
)
m=
(144+81+64)
m=
289
m=17m
The length of the longest rod is 17m
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