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Volume =π r² h
             = π×(10)²×(700) = 220000 cm³
weight = 225 ×220000 = 49500000 kg
but i think weight should be 225kg/m³
considering this
volume = π×(0.1)²×700 = 22 m³
weight = 22×225 =4950 kg
4 3 4
Hi there,
volume of the pole=πr^2h
therefore weight=225*22=4950 kg.
i hope this helps u...
2 3 2
that is r square not only r...correct that