Question

show the introduction of chapter 10 for class 9 maths​

Answer 1

Answer:

The set of all the points in a plane that is at a fixed distance from a fixed point makes a circle.

A Fixed point from which the set of points are at fixed distance is called the centre of the circle.

A circle divides the plane into 3 parts: interior (inside the circle), the circle itself and exterior (outside the circle)