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Visit this site: http://whistleralley.com/orthocenter/orthocenter.htm

Author:Paul Kunkel
Description: What is significant about the orthocenter of a triangle? Why does it even have a name? This investigation was prepared for a geometry teachers' workshop. It includes a lesson handout in Word format and was written for use in a computer lab with the Geometer's Sketchpad.

Levels: High School (9-12), College
Languages: English
Resource Types: Geometer's Sketchpad
Math Topics: Constructions, Triangles and Other Polygons

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