3. Determine the volume

A hemispherical tank is made up of an iron sheet \(1cm\) thick. If the inner radius is \(1 m\), then find the volume of the iron used to make the tank. (Assume \(π =\frac{22}{7}\))

 

Required volume is \(0.65264 m^3\)\(0.06348 m^3\)\(0.02365 m^3\)\(0.01256 m^3\)