The radius of the base of a cylinder is $7 \, cm$. Then,the area of its base is $\dots \, cm^2$.

$A$ cubical block of side $7 \, cm$ is surmounted by a hemisphere. What is the greatest diameter the hemisphere can have? Find the surface area of the solid (in $cm^2$). [Use $\pi = \frac{22}{7}$]

Total surface area of a hemisphere $= \ldots \ldots \ldots . . .$

$2$ cubes each of volume $64 \, cm^3$ are joined end to end. Find the surface area of the resulting cuboid in $cm^2$.

$A$ cylindrical pencil sharpened at one edge is the combination of

The $TSA$ (Total Surface Area) of a hemisphere is equal to $\ldots \ldots \ldots$