Question

a wire diameter 1cm is prepared by melting a sphere of radius 6cm what will be the length of the wire ​

Answer 1

volume of sphere=volume of cylinderical wire

4/3πr^3=πR^2h

4/3π×6×6×6=π×1/2×1/2×h

4×2×6×6=1/4×h

h=16×2×36

=32×36

=1152