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Nine Point Circle
Author:
Esther Gruenhut
Topic:
Circle
Euler, Feuerbach, etc.
GeoGebra
And if that wasn't enough:
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Move point P to see what happens when you reflect the orthocenter through the points on the nine point circle.
GeoGebra
New Resources
apec
Untitled
Luxembourg Symbol
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Pythagorean Day
Discover Resources
Malevich
Quadratic Shifts
Quintuple pendulum
MA523 2.1.20 z-plane
cicloide_invert_
Discover Topics
LCM and GCD
Translation
Derivative
Scalene Triangles
Straight Lines