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梯形
Author:
Chan Ting Hin
Topic:
Trapezoid
GeoGebra
New Resources
近似值：有效數字
畫出對稱圖形
長方體平面投影 (Codex版)
拼砌四邊形
Fibonacci Clock
Discover Resources
變色孔雀
國旗上傳測試
旋轉圓
二項分布與抽樣的副本
雙曲線軌跡
正四面體碎形
Discover Topics
Orthocenter
Logic
Scatter Plot
Special Points
Rational Numbers