The answer is 1.000.

**
This section requires Javascript.
**

You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.

Any three non collinear points will always be on some circle, because the points will form a triangle, and every triangle has a circumcircle, a circle touching all three vertices of the triangle.