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Author:
jirapon khemdee
GeoGebra
New Resources
van Aubel's Theorem
Piano. Keyboard.
Ellipse, Hyperbola and Circle as Envelopes
"Compressed" Astroid as Envelope
Stairs (Optical Illusion)
Discover Resources
Concentric circle construction of ellipse
Vector field
Slopes of Parallel Lines
Plotting Points in 3D: Dynamic Illustrator
Exploring Perpendicular Bisectors: Part 1
Discover Topics
Isosceles Triangles
Sine
Geometric Distribution
Square
Cone