A metallic sphere of radius 12 cm is melted and drawn into a wire, whose radius of cross section is 16 cm. What is the length of the wire?  Choose the correct choice from the following answers:
A) 6 cm B) 5 cm C) 2 cm D) 7 cm E) 9 cm
Volume of the wire (in Cylindrical shape) is equal to the volume of the sphere.   π(16)2 * h   = (4/3)π (12)3 =&gt; h   = 9 cm   Answer: 9 cm
<result>E</result>
A metallic sphere of radius 12 cm is melted and drawn into a wire, whose radius of cross section is 16 cm. What is the length of the wire?