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The diameter of a metallic sphere is 6 c...

The diameter of a metallic sphere is 6 cm. The sphere is melted and drawn into a wire of uniform circular cross-section. If the length of the wire is 36 m, then what is its radius equal to?

A

`0 cdot` cm

B

`0 cdot 01` cm

C

`0 cdot 001` cm

D

`1 cdot 0` cm

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