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A cylindrical metallic pole has a radius of 42 cm and height 5m. Find its volume. If 1m3 of metal weighs 250 kg. Find its weight.
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Step-by-step explanation:
Radius of cylinder=42cm=42÷100=0.42m
Height of the cylinder=5m
Volume of the cylinder=πr2h=22÷7×0.42×0.42×5=27.72m3
therefore 1m3=250kg=250×27.72=6930kg
Ans-6930kg
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