A clay ball was split in half and its insides is scooped out. If the hollow shape formed is a hemisphere of radius 7 cm, and has a thickness of 2 cm. Find the volume of the clay remaining in both the halves.
1617.52 cm3
Radius of hemisphere = 7 cm
Thickness of the clay ball = 2 cm
Radius of the clay ball = 7 + 2 = 9 cm
Volume of clay ball remaining is =
43πr13−43πr2343π[93−73]43×227×386=1617.52 cm3