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Geometry Level 2

Find the length of 13.2 kg copper wire of diameter 4mm, when 1 cubic cm of copper weighs 8.4 gm

0.02m 140m 10m 125m

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Vedant Gaikwad by Vedant Gaikwad , 25, United Kingdom

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1 solution

Ahmed El-Moneim
Oct 2, 2014

Volume of wire 13.2 kg = 13.2*1000/8.4 cm3

volume of the wire = Pi x D x L

then L = 125 m

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