Relative positions between the circumference and a point
In this video I will explain the relative positions between a circle and a point. In order to explain these references you will have to make a base circumference.
The first thing we can say is that the point can be inside or outside the circumference or it can belong to the circumference. Therefore:
- If the distance from the point to the center of the circumference is greater than the radius, it means that it is a external point. D> r
- If this distance is less than the radius, the point is within the circumference. D
- And finally if the distance is equal to the radius, it means that this point is right on the circumference. D = r.
In the image we can see it very clearly, the external point being "A", the belonging point "B" and the internal point being "C".
![](/f/119a39da91d4fdb65269f96907f5b502.png)
Also, if you want to learn more about the relative position between a circle and a point, watch the video. If you still have doubts you can do the printable exercises with their solutions that I have left you on the web.