In geometry, a circle is defined as a closed figure with a set of points in a plane at a specific distance from the centre. It is divided into two parts: an interior and an exterior.
The area of a circle is calculated by the given formulae: A = π r2
Where: A is the Area and r is the radius.
The properties of the circle are:
- The line passing through the centre of a circle is called a Diameter.
- The distance around the circle is called the Circumference.
- The distance from the centre to the circumference of a circle is called the Radius.
Notes about Class 9 Chapter 10 Maths-Circles is found below:
For more information about the Circles, click on the below-mentioned links.