The green, red, and blue lines are the [b][u]perpendicular bisectors[/u][/b] of each of the sides of this triangle. [br][br]Note: all three perpendicular bisectors intersect at the same point called the [b][u]circumcenter[/u][/b][br]
What is special about perpendicular bisectors? Manipulate the vertices of the triangle to investigate the properties of the Circumcenter.