Question

the diameter of a sphere is 6cm it is melted into a wire of diameter 2mm find the length of wire​

Answer 1

Answer:

For cylindrical wire,

d=0.2cm,r

2

0.2

=0.1cm

Let the length of wire be xcm

So, according to problem Volume of cylindrical wire Volume of sphere

=πr

2

h=

3

4

πr

3

=0.1×0.1×x=

3

4

×3×3×3

x=

0.1×0.1×0.1

4×3×3×3

x=3600cm or 36cm