Reason For Learning
The distance around a circle can be hard to measure, especially if all you have is a ruler to help you out. This bite explains how the distance around a circle can be calculated if you know how wide the circle is. An understanding of the relationship between circumference and radius is important for future studies of circular functions (VCE maths) as radian units are used extensively.
Learning Intention
In this bite, you will learn the rule for circumference, the link between radius and diameter and you may complete a practical activity that uses string to measure the distance around the circle and its diameter.
Key Vocabulary Terms