Parts of a Circle
Interactive Circle
This tool enables manipulation and investigation of different circle terminologies.
You can click on the terminologies to make them appear/disappear in the circle.
You can also click and drag the points to change their orientation.
Explore the following parts of a circle to gain an understanding of what they are.
1. radius
2. chord
3. diameter
4. secant
5. tangent
6. center
7. arc
8. minor and major arcs
9. semi-circle
10. central angle
11. inscribed angle