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劉虹圻 內心
Author:
呂麗珠
GeoGebra
New Resources
撒针估算面积实验
百分數及其應用
双心四边形
科氏力 (Coriolis Force)
圓的基本性質
Discover Resources
directed number_hot air balloon
探究平行四邊形面積(2)
勝者即正義，可愛即正義～(可用Ctrl+滑鼠滾輪放大界面)
Book10-Unit7-拼出平行四邊形
Hello world
Discover Topics
Symmetry
Indefinite Integral
Statistics
Secant Line or Secant
Cone