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Proof without Words - Theorem of Thales
Author:
chermann2.10
GeoGebra
What relationship is shown here? Can you use the picture to create a formal proof?
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
The Red Chair
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從邊長辨認四邊形
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