Circumcircle

Cirucmcircle Sean Neo, Created with GeoGebra

I made a circumcircle using Geogebra. First, I constructed a triangle using the plygon tool. Afterwards I bisected each angle and then clicked on 'Circle through 3 points' I then proceeded to select each point on the triangle and as a result, a circle appeared outside the triangle, only touching it's three points. To test if it worked, I dragged the riangle's points. The circle stayed attached to the triangle's points, proving that it is a circumcircle.