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Find the volume of wood required for makingthe closed box with internal dimensions : 20 cmby 12.5 cm by 9.5 cm; wood 1.25 cm thick. |
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Answer» Given outer length = 10 cmOuter breadth = 8 cmOuter height = 7 cmOuter volume = length × breadth × height= 10 × 8 × 7 = 560 cm3Thickness of wooden box, w = 1 cmInner length =l– 2w = 10 – 2 = 8 cmInner breadth =b– 2w = 8 – 2 = 6 cmInner height =h– 2w = 7 – 2 = 5 cmOuter volume = 8 × 6 × 5 = 240 c m3Volume of wood used = outer volume – inner volume= 560 – 240 = 320 cm3 thank u so much |
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