[" 11A cube of side "4cm" contains a sphere touching its sides.Find the volume of the gap "],[" in between."],[12" Find the volume of a sphere whose surface area is "154cm^(2)" ."],[13" If the volume of a sphere is "179(2)/(3)cm^(3)" ,find its radius and the surface area."],[14" a hemispherical bowl has a radius of "3.5cm" .What would be the volume of water it "],[" would contain? "]