# Circumference of a circle

From Karnataka Open Educational Resources

Measuring circumference to understand it as the perimeter of the shape.

### Objectives

- Circumference is the outer boundary of a circle.
- It is equivalent to perimeter.

### Estimated Time

10 minutes.

### Prerequisites/Instructions, prior preparations, if any

Prior knowledge of points, lines and line segments, formation of a circle.

### Materials/ Resources needed

Non digital: White paper, compass and colour pencils

### Process (How to do the activity)

Instructions to the teachers:

- Ask the children to draw circles.

Instructions for the students

- Colour circumference by fitting small colour pencil in compass itself.

- Evaluation

- Observe for the skill in using compass and drawing the circle.

- Is the distance between the centre of the circle and its circumference constant ?
- What is the distance between the center of a circle and its circumference called?