# Class: IV Sub: Maths TOPIC: CARTS AND WHEELS

## Presentation on theme: "Class: IV Sub: Maths TOPIC: CARTS AND WHEELS"— Presentation transcript:

Class: IV Sub: Maths TOPIC: CARTS AND WHEELS
Prepared by :Mr A.K. Pathak

We can find many such round things around us

We can trace a circle with the help of these things

Small circle Big circle

Properties of Circle O Diameter Chord Radius

Centre Centre: Each point of a circle is at equal distance from a fixed point. The fixed point is called the centre of the circle. Centre is in the interior part of the circle but centre is not a part of a circle.

Radius The distance from the centre to any point on the circle is called the radius of the circle.

Diameter A line segment passing through the centre and whose end points are on the circle is called the diameter of the circle.

Chord A line segment whose end points are on circle is called a chord.
Diameter is a longest chord of the circle.

Circumference The length of a circle is called a circumference.

Assessment Fill in the blanks 1. -------- is not a part of a circle.
2. Centre lies in the part of a circle. 3. Diameter of a circle is of the radius. of the circle is half of its diameter.

Thanking you