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The Disappearing Face
Author:
Ben Sparks
GeoGebra
From Martin Gardner's Mathematics Magic and Mystery
New Resources
Cross Product in 2D and 3D
Teorema Japonês para quadriláteros inscritos em uma circunferência
Angles and Intersecting Lines: Quick Investigation
Slope Field (1)
Stairs (Optical Illusion)
Discover Resources
Achsen- und Punktsymmetrie.png
calligraphie
Butterflies (Reflections for Inv 3)
Geometry: Introductory Definitions, Postulates, Theorems
Triangle Creator
Discover Topics
Fractal Geometry
Boxplot
Solids or 3D Shapes
Conic Sections
Rectangle