the internal dimensions of a rectangular box are 12 cm *x cm* 9 cmif the length of the longest rod that can be placed in this box is 17 cm find x

We have,length, l = 12 cm; breadth, b = x cm; height, h = 9 cmlength of longest rod = length of the diagonal = l2+b2+h217 = 122+x2+92289 = 144+x2+81x2 = 289 - 225 = 64x = 8So, breadth = 8 cm

  • 8
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