Q. 83.9( 21 Votes )

# <span lang="EN-US

Radius of sphere, R = 9 cm

Let the length of wire be H

Radius Of wire, r = 2 mm = 0.2 cm

Volume of wire , v = πr2H

As sphere is melted to make a wire,

V = v

H = 24300 cm

H = 243 m

The length of the wire formed is 243 m

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