asolid metal cube of side 10cm is melted down and recast as solid metal sphere.calculate the radius of the sphere.Take Pie=3.142

Answer 1

4/3 πr^3 = 10^3

r^3 = 3000 / 4π
r = 6.2

Answer 2

r≈5.64

Answer 3

Using the formula
A=2πrh+2πr2
Solving for r
r=1/2 √(h^2+(2A/π))﹣h/22