Applet contains a triangle with perpendicular bisectors drawn. Its purpose is to have students discover that the circumcenter of a triangle is the ONLY POINT that is equidistant from the triangle's 3 vertices (and consequently, the center of the only circle one can circumscribe about the triangle.)
The applet also leads students to discover that the circumcenter of a triangle lies INSIDE the triangle IFF the triangle is acute, ON the triangle IFF the triangle is right (at the midpoint of its hypotenuse), and OUTSIDE the triangle if the triangle is obtuse.
