Answer :
Volume of the metallic sphere=volume of the wire(cylinder in shape)
Radius of sphere cm
=4.5 cm
Volume of sphere = 3
3
Radius of cylinder = 1mm =0.1cm
Volume of cylinder r2h
⇒ πr2h 3
⇒ r2h R3
⇒ 0.1 × 0.1 × h = × 4.5 × 4.5 × 4.5
⇒ 0.1 × 0.1 × h =4 × 1.5 × 4.5 × 4.5
⇒ h = 12150 cm
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