Answer: 243 m
Volume of sphere \(=\tfrac43\pi(9)^3=972\pi\) cm³.
Wire radius = 2 mm = 0.2 cm. Volume of wire \(=\pi(0.2)^2L=0.04\pi L\).
\[0.04\pi L=972\pi\Rightarrow L=24300\ \text{cm}=243\ \text{m}\]
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Doubtly AI
· 24 Oct 2026
AI-verified · Oct 2026
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