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sin, cos... 9
Author:
Lecel Celec
GeoGebra
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interior - wal panels - gp
Bibi Khanun entrance gate inside wall - ks
One Point of Inflection
How Many Radians?
Parallelogram Theorems: Quick Check-in
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Centroid
Wavy polygons
Puzzle 4 3 30 degree SAS triangle
Proof of Pyth theorem (moving shapes)
Duchamp Rotorelief
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