Question

The diameter of a sphere is 6cm.it is melted and drawn into a wire of diameter 2mm. The lenght of the wire is

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

Answer 2

Step-by-step explanation:

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

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