Question

the diameter of a metallic sphere is 6 cm It is melted and drawn into a wire of diameter 2 centimetre then find the length of the wire​

Answer 1

Diameter of Cylinder (D) = 6 cm

Radius of Cylinder (R) = 3 cm

Diameter of Wire (d) = 2 cm

Radius of Wire (r) = 1 cm

Volume of Cylinder (V) = Volume of Wire (v)

$4/3\pi r^3= \pi r^2h$

4×3×3 = h

h = 36 cm