find volume of iron required to make an open box whose external dimensions are 36*25*16.5cm the box being 1.5cm thick throughout.if 1cubic cmof iron weight is 8.5grams, find the weight of empty box
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36+25+16.5×1.5×8.5=?
77×1.5×8.5=87
so 87 cubic cm
77×1.5×8.5=87
so 87 cubic cm
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