Surface Areas a...

Mohit painted the outside of a box of length $$2.5m$$, breadth $$2m$$ and height $$1m$$. How much area did he cover, if he painted all except the bottom of the box?

An aquarium is in the form of a cuboid whose external measures are $$80cm\times 30cm\times 40cm$$. The base side faces and back face are to be covered with a coloured paper. Find the area of the paper needed?

The curved surface area of a cylinder of the base radius $$7\text{ cm}$$ and height $$25\text{ cm}$$.

The volume of hollow sphere is

A right circular cylinder tunnel of diameter $$2 \text{ m}$$ and length $$40 \text{ cm}$$ is to be constructed from a sheet of iron. The area of the sheet required in$$\text{ m}^2$$ is  

The diameter of the base of a right circular cylinder is $$21\mathrm { cm }$$ and its height is $$10\ \mathrm { cm }$$ . What is the area of the curved surface? 

The diameter of a sphere whose surface area is $$346.5$$ $$\mathrm { cm } ^ { 2 }$$ is:

If the surface area of sphere is $$(144\pi)\,{m}^{2}$$, then its volume is  

Calculate the surface area of a sphere with radius $$3.2 cm$$.

If $$'d'$$ is diameter of a sphere, then its volume is-