Chapter: Mensuration· Mathematics Part 2 (Geometry)
Answer: 7200 cm = 72 m
The wire is a long cylinder, and its volume equals the volume of the sphere.
\(\pi (0.2)^2 \times L = \dfrac{4}{3}\pi (6)^3\)
\(\therefore 0.04\,L = \dfrac{4}{3} \times 216 = 288\) \(\therefore L = \dfrac{288}{0.04} = 7200\) cm = 72 m.