Arc of a circle
From Karnataka Open Educational Resources
Objectives
- The students learn that an arc is a part of a circle included between two distinct points on the circumference of the circle.
- The students learn that the the larger arc is called major arc and the smaller one is called minor arc.
Estimated Time
10 minutes
Prerequisites/Instructions, prior preparations, if any
- The students should know to draw a circle using compass.
- They should know that arc is part of the circumference.
Materials/ Resources needed
White paper, pencil, compass, scale and colour pencils.
Process (How to do the activity)
- Explain the concept of arc by drawing a circle and two points on its circumference. The part of the circumference within the two points in either directions are called its arcs.
- Show the labelling of arcs.
- Evaluation
- What is the longest arc of a circle called?
- What are the arcs called when both major and minor arcs are of same size?
