please help in question no. 36 please fast
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400cm2 area of the rectangle
rajnandani7277:
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Given,
Length L = 20 cm
Breadth B = 5 cm
Height H = 4 cm
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Longest needle that can be placed in a rectangular box is its diagonal.
Length of diagonal of a cuboid = √(L² + B² + H²)
Length of longest rod = √(400 + 25 + 16)
= √(441) cm
= 21 cm
Thus the length of the longest needle is 21 cm.
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Yes
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