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สามเหลี่ยมพีทาโกรัส
Author:
สุดารัตน์ ไตรยวงค์
GeoGebra
New Resources
History of Maths
Rotating Points (Optical Illusion)
Piano. Keyboard.
Spinning cube - Belt Trick
Construct a Square
Discover Resources
Approximating Volumes of Solids of Revolutions
Cotangent of a Sum: Discovery
Polyhedra Collection
Little Susan and Big Susan
Vasarely and homothety
Discover Topics
Angles
Median Line
Geometric Transformations
Multiplication
Limits