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Proof Without Words
Autore:
Šárka Voráčová
,
Steve Phelps
Drag the points in the sketch below. What do you notice? What does this prove? How does this prove it?
GeoGebra
Proof by H. Perigal (1830) and H. E. Dudeney (1917) See Cut the Knot:
Pythagorean Theorem
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גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Untitled
functionartculture
立体几何-公理3及推论
Translation of the Graph of a Function
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Geometry - Quadrilaterals
rectangle
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SenkrechteGeraden
Rainbow Pappus chain
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Teoria degli insiemi
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