A cube of edge 8 cm is fixed exactly on the flat face of a solid hemisphere of radius…
MATHEMATICS · Multi-part · CBSE · Mathematics · Surface Areas and Volumes · Surface Areas and Volumes
Problem
A cube of edge 8 cm is fixed exactly on the flat face of a solid hemisphere of radius 4 cm so that their circular and square faces coincide.
Use π=722.
(i) State what is meant by the term “exposed surface area” of a composite solid.
(ii) Which faces of the cube and the hemisphere become hidden after the two solids are joined? Give reasons for your answer.
(iii) Calculate the total exposed surface area of the composite solid.