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trigangle
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GeoGebra
New Resources
Witch of Agnesi - A Classical Construction
Angles and Intersecting Lines: Quick Investigation
Introduction
Isosceles Triangle: Quick Construction
Rotating Points (Optical Illusion)
Discover Resources
Lights Out Game
Phasor addition
Sine and Cosine Table (original)
擴分
CT6modified
Discover Topics
Solids or 3D Shapes
Special Points
Similarity Transformation or Similarity
Equations
Parallelogram