Sphere melted and drawn into a wire of given length: find the wire's diameter

The same question, asked 2 times: CDS 1 2021*, CDS 2 2022. Every wording below, oldest first.

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Question 1
CDS 1 2021
62 $A solid sphere of diameter 60 mm is melted to stretch into a wire of length 144 cm. What is the diameter of the wire?$
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Question 2
CDS 2 2022
80 $The diameter of a sphere made of copper is 3 cm. The sphere is melted and recast into a wire. If the length of the wire is half metre, then what is the diameter of the wire ?$
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