A metal sphere with a radius of 12 cm is melted and reshaped into a cylindrical wire having a cross-sectional radius of 16 cm. What is the length of this wire?

Explanation

The volume of the original sphere equals the volume of the wire. Using the formula for volume: π × (16)^2 × length = (4/3) × π × (12)^3. Solving for length gives 9 cm, which is not listed among the options, so the correct choice is 'None of the above'.