A dynamic look at "Parts of Triangles"

Students: Use this file to inspect Altitudes, Medians, Perpendicular Bisectors and Angle Bisectors. Be sure to drag the points around and examine what happens.

You may use this webpage while completing assignementsin Topic 3 - Geometry B.

Sorry, the GeoGebra Applet could not be started. Please make sure that Java 1.4.2 (or later) is installed and active in your browser (Click here to install Java now)

Bonus: What is the special relationship between the Orthocenter, Centroid and Circumcenter?

What happens when the triangle is Right?
What happens when the triangle is Equilateral?
What happens when the triangle is Isosceles?

M. Ehrman, Created with GeoGebra