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Author:
Tong Wing Hong
GeoGebra
New Resources
科氏力 (Coriolis Force)
龙形曲线-分形龙2
双心四边形
正方形雪花图案
活动三：应用性质
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Projection of vector in R2
托勒密定理推廣到任意四邊形二
翰林B4課p227_9
同旁內角---不平行綫
橢圓1--同心圓法
Discover Topics
Upper and Lower Sum or Riemann Sum
Prism
Power Functions
Similar Triangles
Angles