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Prove: O,K,L,M,N are concyclic (5-point circle)
Author:
johnmayhk
Topic:
Circle
GeoGebra
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Angles and Intersecting Lines: Quick Investigation
Viviani's Window
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Pelecoid
Introduction
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Conics Applet
Orthocenter_geogebra_project
Hansen Doll
Gradient Functions
Angle at Center with spreadsheets 的複本
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Centroid or Barycenter
Logarithmic Functions
Surface
Geometric Transformations
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