Volume of the Cylindrical bar, V = pi r^2 h
V = pi 200^2 9
V = 22/7 40000 9
Let's assume the radius of the sphere as r
Volume of the sphere V1 = 4/3 pi r^3
V1 = V
V1 = 4/3 pi r^3
22/7 40000 9 = 4/3 22/7 r^3
r^3 = (40000 9) 3/4
r^3 = 10000 9 3
r = ( 10 10^3 3^3)^(1/3)
r = 10^(1/3) 10 3
r = 2.154 * 30
r = 64.63 cm
