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GeoGebra
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Geometric ideas
Author:
Renert School
New Resources
van Aubel's Theorem
Stairs (Optical Illusion)
Angles and Intersecting Lines: Quick Investigation
Pelecoid
Napoleon's Theorem
Discover Resources
Geometry Transformations (Translation)
Conic Sections Exercise 3
Slope Triangle Drawing
h23n4
棒形圖製作器
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Geometry
Plane Figures or Shapes
Planes
Root
Random Experiments