a solid sphere of diameter 18 cm is melted and drawn into a wire of radius 1 mm find the length of wire
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Answer:
Volume of the sphere = Volume of the wire
Volume of the sphere = 4/3 × pi × r³
= 4/3 × 22/7 × 18³
= 7776 × pi cm³
Volume of wire (cylinder) = pi × r² × h
pi × 7776 cm³ = pi × 0.01² × h
h = 7776/0.0001
Length of the wire is 77760000cm
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