A square brass plate of side x cm is 1 mm thick and weighs 5.44 kg . if 1 cm^3 of brass weighs 8.5 g , find the value of x.

Volume of square brass plate=1/10x^2 cm^3.
ATP, 1cm^3=8.5g
Then, 1/10x^2 cm^3=8.5*1/10x^2
ATP, 8.5*1/10x^2=5440
or 1/10x^2=5440/8.5
or x^2=5440/8.5*10
or x^2=6400
or x=80cm
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