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平行四邊形與長方形的關係
Author:
fantast411
GeoGebra
New Resources
畫出對稱圖形
Earth with coastline
中華民國國旗 (Codex╱2026.10.06)
近似值：有效數字
找出對稱軸
Discover Resources
Chapter 11
正立方體的截面
五边形的旋转平铺（迭代加序列）
Triangle
折纸成抛物线
Discover Topics
Pyramid
Pythagoras or Pythagorean Theorem
Standard Deviation
Incircle or Inscribed Circle
Rotation