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聯動鐘面（教師版）
Author:
Mr Tsang
請轉動分針上的小點，以移動分鐘。
GeoGebra
New Resources
Locus Related to Descartes' Folium
bewijs stelling van Pythagoras
Reflection = 180° Rotation about a Line
apec
Shells
Discover Resources
test
TriRect_1
Unit Circle for Sine and Cosine
Discover Topics
Expected Value
Fractal Geometry
Geometric Mean
Angles
Vectors