Basic Four Centers of a Triangle
To create the triangle, left click once and drag to create the base in any desired direction, then move the curser in any direction to create the peak of the triangle. You have now created the four centers of triangle. You can also play with the one I have already created to see what happens to the triangle as you move a point around. Point H represents the orthocenter, G represents the centroid, C represents the circumcenter and I represents the incenter of the triangle ABC.
