"A   hemispherical depression is cut out from one face of a cubical wooden block   of
Channel: Doubtnut
Date: 2020-06-28

"A
 
  hemispherical depression is cut out from one face of a cubical wooden block
 
  of edge 21 cm, such that the diameter of the hemisphere is equal to the edge
 
  of the cube. Determine the volume and total surface area of the remaining
 
  block."