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GeoGebra
GeoGebra Lesson
Outline
The Circles of Lester, Evans, Parry, and Generalizations
Basics
Fermat Points
Kiepert Point
The First Lester Circle
The Symmedian and Isodynamic Points
The Circles of Lester, Evans, Parry, and Generalizations
Author:
Steve Phelps
Topic:
Circle
The Circles of Lester, Evans, Parry, and Their Generalizations From Paul Yiu's MathFest presentation in 2008
Table of Contents
Basics
Basic Triangle Centers
Fermat Points
Fermat Point and Negative Fermat Point
Fermat Point and the Orthocentroidal Circle
Fermat Points and the Centroid
Fermat Points and the Orthocenter
Circle Through the Fermat Points
Kiepert Point
The Kiepert Point (Perspector) and Kiepert Triangle
Kiepert Hyperbola
Points on Kiepert Hyperbola
Circles Through Fermat Point & Kiepert Hyperbola
The First Lester Circle
The First Lester Circle
The Symmedian and Isodynamic Points
Inverses and Orthogonal Circle
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