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Orthocentre of a Triangle
Author:
Dolly Madan
The concurrence of 3 altitudes is called orthocentre
GeoGebra
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Simple 3D Vector Field
Constructing the Perpendicular Line Through a Point on the Line
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
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