5. A hemispherical depression is cut out from one face of a cubical wooden block such that the diameter
of the hemisphere is equal to the edge of the cube. Determine the surface area of the remaining solid.
Solution:
It is given to us that diameter of Hemisphere is equal to edge of cube
Radius of Hemisphere
Surface Area of Solid = Surface Area of 5 faces of cube + Inner Surface Area of Hemisphere + Blue Area on the Top Face ABCD
(Area of Square ABCD – Area of Inscribed Circle in square ABCD)
ayushi says
Its niiice but pls provide sol of ex 13.8 &13.7