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包絡線墜飾
Author:
陳隆期
GeoGebra
New Resources
折扣
斐波那契螺旋弧线（表格法-可动态调节）
第八周作业2
百分數及其應用
科氏力 (Coriolis Force)
Discover Resources
把三角形分類
GGB5_3D:曲線與曲面
最小周長
圓與切線
初中几何证明
Discover Topics
Vectors 2D (Two-Dimensional)
Arithmetic Operations
Pythagoras or Pythagorean Theorem
Multiplication
Sine