1. A cylindrical pencil sharpened at one edge is the combination of

2. A surahi is the combination of

3. A plumbline (sahul) is the combination of (see Fig.

4. The shape of a glass (tumbler) (see Fig. ) is usually in the form of

5. The shape of a gilli, in the gilli-danda game (see Fig. ), is a combination of

6. A shuttle cock used for playing badminton has the shape of the combination of

7. A cone is cut through a plane parallel to its base and then the cone that is formed on one side of that plane is removed. The new part that is left over on the other side of the plane is called

8. A hollow cube of internal edge 22cm is filled with spherical marbles of diameter
0.5 cm and it is assumed that 1/ 8 space of the cube remains unfilled. Then the number of marbles that the cube can accomodate is

9. A metallic spherical shell of internal and external diameters 4 cm and 8 cm, respectively
is melted and recast into the form a cone of base diameter 8cm. The height of the cone is

10. A solid piece of iron in the form of a cuboid of dimensions 49cm × 33cm × 24cm, is moulded to form a solid sphere. The radius of the sphere is