Question

A cube of copper of edge 11cm melted and formed into a cylindrical wire of diameter 0.5 cm, what length of wire will we obtained from the cube?

Answer 1

6(a)² = 2πrh

6(11)²= 2*3.14*0.5/2*h

726 = 2*3.14*0.25*h

h=1139.82

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