A cone is 3-dimensional shape which is formed by different line segments or lines joining to a common point know as apex of the cone. A cone has a base that s circular in shape that tapers to the apex forming a cone.

## Properties of Cone

- A cone has curved sides.
- A cone be made by rotating a right angled triangle.
- One end of cone is a circle.
- Other end of the cone is point called
**apex**.

## Surface Area of Cone

- Area of the base of cone =
*Ď€ Ă— r**Â˛* - Area of the side of cone =
*Ď€ Ă— r**Ă— s*

So the surface area of cone will be,

*A =**Ď€ Ă— r** Ă— (s + r)*

Where, **(r)** is the radius, **(h)** is the height and **(s)** is the slant height of the cone.

## Volume of Cone

Volume of cone is given by

**V = (1/3) Ď€ Ă— rÂ˛ Ă— h**

x