1.

a solid sphere of radius 3cm is melted and reformed by stretching it into a cylindrical shaped wire of length 9m.find the radius of the wire.​

Answer»

Answer:

SPHERE →r=1cm

Wire is a CYLINDER

Cylinder→H=100cm,r=?

Volume of sphere=Volume of wire(cylinder)

3

4

πr

s

3

=πr

cy

2

h

cy

r

cy

2

=

πh

cy

3

4

πr

s

3

=

3×h

cy

4r

s

3

=

3×100cm

4×1×1×1cm

3

=

75

1

cm

2

r

cy

=

75

1

=

5

3

1

cm=0.11cm

RADIUS of the wire=0.11cm.



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