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GeoGebra
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GeoGebra
GeoGebra Classroom
GeoGebra
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The original construction
Author:
Steve Phelps
GeoGebra
New Resources
Rotating Points (Optical Illusion)
Drag that Point!
Isosceles Triangle: Quick Construction
Bottema's Theorem
Piano. Keyboard.
Discover Resources
Disk Method
Torque Lever Simulation
Tangent and Normal Line Equations
Centroid
Multiplying Powers of Ten: IM 8.7.2
Discover Topics
Geometric Transformations
Ellipse
Similar Triangles
Special Points
Quadrilaterals