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平行四邊形
Author:
李春培
Topic:
Parallelogram
GeoGebra
New Resources
Fibonacci Clock
近似值：有效數字
四邉形 (四年級) 教師版
美國國旗 (Claude 版)
Earth with coastline
Discover Resources
點到直線的距離 8：觀察平行線常數項的差距
正十二面體
三度空間中的長方體
扇形動畫
Bisects Chord
Discover Topics
Geometric Distribution
Set Theory
Circle
Differential Equation
Root