Question

the diameter of the metallic sphere is 6cm and melted to draw a wire of radius 1cm then the length of the wire is ?​

Answer 1

Diameter of sphere =6 cm

Radius of sphere =6/2 =3cm

Volume of sphere = 4/3 πr^3=36πcm3

Radius of wire =1cm

As the wire is in the shape of cylinder .so that volume of cylinder =πr^2h

Now, volume of metal sphere = volume of wire

36π=π×1^2 ×h

h=36cm