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勒洛四面体（拼接法）
Author:
孟宝兴
GeoGebra
New Resources
第八周作业
【案例】2013年安徽高考15题
兩組對邊相等的四邊形
四邉形 (四年級) 教師版
找出對稱軸
Discover Resources
proof RHS
記錄最大值
繡曲線
垂心問題
極落戰艦-初階版
Discover Topics
Dilation
Parallelogram
Statistical Characteristics
Equilateral Triangles
Geometry