Answer :

We know that,

1m = 100cm


Therefore,


Dimensions of the iron piece will be: 105 cm × 70 cm × 1.5 cm


We know that,


Volume of cuboid = Length × Breadth × Height


Total volume of the piece of iron = 105 × 70 × 1.5


= 11025 cm3


We also know that,


1 cm3 = 8 gms


Therefore,


Weight of the piece = 11025 × 8


= 88200 g


=


= 88.2 kg


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