Question

If a solid sphere of radius 6 cm is melted and drawn into a wire of radius 0.2 cm,then the length of the wire is

Answer 1

Answer:7200cm or 72m

Step-by-step explanation:

Volume of sphere = volume of wire

That is wire is in the shape of cylinder

4/3πr^3 =πr^2h

h=4/3×π×6×6×6/π×0.2×0.2

=4×6×6×6/3×0.2×0.2

=7200cm

=72m