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Parallellogram Proof
Author:
JohnCMorris
GeoGebra
New Resources
Making New Year's resolutions for 2026
bewijs stelling van Pythagoras
רישום חופשי
Reflection Across 2 Parallel Lines
Reflection = 180° Rotation about a Line
Discover Resources
TangentCircles
Modular Arithmetic Rolling Demonstration
Length of tangents from external point
Coordinate Direction Angles
Phyllotaxis
Discover Topics
Arithmetic
Polygons
Tangent Function
Volume
Sine