Circle

I think ''circle'' is a large topic,we can discuss more...

First of all,do you think a point is a type of circle?

Hehe, that´s a good question!

I´d say no, because the radius is 0, and a point is one-dimensional and a circle 2D.

I'd say yes, and it is 0-D, but it can appear as itself in any world that has at least 0 dimensions. A point is a circle with a radius of 0.

In my opinion,I think a point is a type of circle.

If the radius of circle is 0,the circle does not exist.Therefore,I think the radius of that point must be greater than 0.