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Euclid Book IV Proposition 11-Construction of the Regular Pentagon
Author:
Moira Chas
,
Gary Rubinstein
Using a golden ratio to construct a regular pentagon
GeoGebra
The golden ratio leads to the golden triangle leads to a regular pentagon
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Two-Way Tables and Ven Diagrams
The Cosine Formula - Proof Without Words
The black friday GeoGebra :)
Silhouettes
Positive and Negative Space
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Visualizing Triangle Inequalities
Coordinate Vectors
Illustrative2.10
סרטוט ריבוע לפי דו"ח
Garfield
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Cylinder
Subtraction
Numbers
Tangent Function
Fractions