a closed box is made of wood 2cm thick and its length bredth and height externally are 80 cm 60 cm and 50 cm.respectively.find the volume of the wood
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External length=80cm
External breadth=60 cm
External height=50 cm
External volume=l×b×h=80×60×50=240000cm^3
Internal length=80-2-2=76cm
Internal breadth=60-2-2=56 cm
Internal height=50-2-2=46cm
Internal volume=l×b×h=76×56×46=195776cm^3
Volume of wood= External volume-Internal volume=240000-195776=44224cm^3
Hope it helps!!
External breadth=60 cm
External height=50 cm
External volume=l×b×h=80×60×50=240000cm^3
Internal length=80-2-2=76cm
Internal breadth=60-2-2=56 cm
Internal height=50-2-2=46cm
Internal volume=l×b×h=76×56×46=195776cm^3
Volume of wood= External volume-Internal volume=240000-195776=44224cm^3
Hope it helps!!
abc237:
why we take -4 instead of -2
It has to be subtracted from both the sides.
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