Surface Areas a...

Find the volume and surface area of a sphere of radius $$4.2$$ cm. $$\displaystyle \left [ \pi =\frac{22}{7} \right ]$$

The total surface area of a solid right cylinder of radius $$r$$ and height $$h$$ is $$2\pi r(h+r)$$

The volume of a solid is the measurement of the portion of the space occupied by it.

The volume of a sphere of diameter $$d$$ is:

The ratio of the volumes of two spheres is $$8 : 27$$. The ratio of their radii is

Curved surface area of hemisphere of diameter $$2 r$$ is :

If the diameter of the sphere is doubled, the surface area of the resultant sphere becomes $$x$$ times that of the original one. Then, $$x$$ would be:

If the curved surface area of a cylinder is $$1760$$ sq.cm and its base radius is $$14$$ cm, then its height is:

If radius of a sphere is doubled, how many times its volume will be affected?

Find the volume of a sphere whose radius is $$7\ cm$$