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周界2
Author:
s1104340
Topic:
Algebra
GeoGebra
New Resources
兩組對邊相等的四邊形
拼砌四邊形
小数 的副本
近似值：有效數字
算柱 (兩位數)
Discover Resources
閱讀鐘面及數字鐘（時和分）
特別角的三角函數值(1)
Angle of elevation and Angle of depression(仰角和俯角)
平行四邊形面積的副本
微元法演示
Discover Topics
Right Triangles
Polynomial Functions
Sequences and Series
Circumcircle or Circumscribed Circle
Random Variables