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Altitudes of a triangle
Author:
Zoltán Kovács
GeoGebra
Check whether the altitudes of a triangle are concurrent. Use the Relation tool.
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Area of a Trapezoid
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Building Trapezoids with Set Areas
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