Surface Areas a...

The amount of water displaced by a solid spherical ball of diameter $$4.2$$ cm, when it is completely immersed in water, is

If two solid hemispheres of same base radius r are joined together along their bases, then curved surface area of this new solid is

In a cylinder, radius is doubled and height is halved, curved surface area will

The number of dimensions, a solid has :

Area of the base of a solid hemisphere is 36$$\pi\  cm^2$$. Then its volume is :

Area of base of a solid hemisphere is $$36 \pi\ sq cm.$$ Then its volume is :

The volume of a sphere of radius $$r$$ is:

Given dimensions of a cuboid as $$ l = 3\ cm, b = 2\ cm$$ and $$h = 1\ cm.$$ Find the volume.

The radius of a solid hemisphere is $$2r$$, then its total surface area will be :

If the surface area of a sphere is $$144 \pi \ cm^{2}$$, then its radius is: