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學習單：三角形任一外角與內角關係
Author:
Tsai, Dung Jung
,
Tim Brzezinski
GeoGebra
New Resources
GeoGebra笔记功能体验课件
找出對稱軸
兩位數除以一位數（二）
【案例】2018年全国1卷理科12题
拼砌四邊形
Discover Resources
色彩視覺藝術
Triangular Prism Net
小遊戲(Butterfly)
黃金三角形
趣味数学
Discover Topics
Circumcircle or Circumscribed Circle
Indefinite Integral
Quadrilaterals
Tree Diagrams
Stochastic Process or Random Process